Melty Blood/MBAACC/Tier lists
The tier lists on this page are subjective in nature, and are the products of their individual authors. You can only trust a tier list as much as you trust its author.
Tier lists reflect the understanding on relative character strength at the time that they are written. Metas can develop and characters can change after a tier list is made.
Tier lists usually do not account for character difficulty, but that can sometimes be a factor depending on the author.
Depending on your goals and how competitive you are, tier lists may or may not be entirely irrelevant.
These are Melty Blood Actress Again Current Code tier lists, organized by their authors' respective regions and alphabetical order to avoid bias.
IMPORTANT NOTE: THE ORDER OF THESE TIER LISTS IMPLIES NOTHING. THE FIRST IS NO BETTER THAN THE LAST.
North America
Alps's Tier List
Alps is a top-level 
C-Nanaya main from North America who uses 
C-Tohno and 
F-Nanaya as secondaries, as well as having experience playing a variety of other characters.
This tier list is from November 2023 and ordered within tiers. According to Alps, this tier list is made specifically for PC Melty, and prioritizes matchup spread over individual character strengths while still considering both. Because reaction is vital to the practical outcome of almost every situation in the game, an opinion formed around Ringwide would end up compiling into something vastly different (i.e. H-Nanaya and C-Sion would be lower, F-Wara and H-Kouma higher, C-Koha no longer top 1, etc.)
His tiers are defined in more complexity here:
S+ Tier: Straight up best in the game. Broken despite their slight (but noteworthy) deficits.
S Tier: Overwhelming in total, but their drawbacks almost ground them by being as bad as anyone else's.
A+ Tier: Though not as outright ignorant before top tiers, their fantastic rewards and toolsets allow them to easily be of constant concern for just about any matchup.
A Tier: Comparable to A+, but falls somewhat behind in terms of generating advantage, or capitalizing on it. This becomes fairly apparent against those in S+, but gradually less so the lower the tier gets.
A- Tier: Solid potential, and overall matchup spread. Strong capacity to deny interaction while playing their game, but may struggle to avoid working with exploitable commitments in neutral (unlike every character above this tier).
B+ Tier: The embodiment of strong but balanced. The path to their otherwise commanding win conditions aren't independent of their latent weaknesses. However, their strengths have plenty of good chances to shine more than not. Coupled with the versatility of their options, this makes them viable without question.
B Tier: The weaknesses of these characters are now a leveled equal to their strengths. The most notable of which can be seen in their lack of ability to truly control the pace with options that are enforcable, well-rounded, and beneficial altogether.
B- Tier: Despite their complete gameplans and standard potency for rulebreaking, the weaknesses begin to outweigh their strengths in practice. While these weaknesses are still manageable, and the difference hard to notice in the hands of proficient players, everything has to be optimized to remain a consistent threat.
C+ Tier: At this point, characters have to rely almost entirely on fundamentals to succeed. Due to a near-complete lack of situations/tools to dominate neutral, and subpar offensive capacity (in a proactive, offense-favored system), your success is wholly dependent on your mastery of the game.
C Tier: Same as above, but now characters lack the reliable design to execute a working gameplan. They may otherwise be subject to falling behind on damage, or even just by being Half Moon.
C- Tier: All the flaws listed for C are defining issues in this tier.
Almost Functional: If you want to win anything held to the barest of competitive standard, don't touch this tier.
Not Functional: These characters can't do anything substantial even in theory. Not listed below due to wiki limitations (until fixed otherwise): F-Neco,C-NAC,F-NAC
Deus's Tier List
Deus is a high-level 
F-WLen main from North America with a pocket 
F-Neco.
Jbelanger's Tier List
Jbelanger, also known as Jbel, is a top-level North American 
F-Miyako main with a pocket 
F-Nero.
This tier list is from June 2020 and ordered within tiers. Some characters were left unranked due to lack of knowledge at the time, marked ??? on the list. Source: Twitter
Kurodyne's Tier List
Kurodyne is a top-level North American 
C-Roa main with a secondary/pocket 
H-Tohno.
This tier list is from August 2023, with some minor adjustments made later.
His tier list is less ordered the further down you go, with an explanation here:
The best are completely ordered. If you're trying to pick one of *the best* characters, chances are you care about the minute differences between character strength.
Top tiers are loosely ordered. If you're looking at characters in this tier, you probably care about picking a very strong character, but don't necessarily need the top cut.
High tiers are not ordered. If you're picking a high tier, you're probably either just trying to pick a good character or just trying to avoid the super-strong characters. If splitting hairs mattered, you'd be picking a top tier.
Mid tiers are not shown, since it wouldn't be ordered anyway and it'd just be a big bloated tier. If you can't spot your character on the list, they're here.
Avoid at first are characters who are weak enough to be noticeable. If you're just trying to pick a character that doesn't feel weak, avoid these characters (and the ones below them, obviously). They're functional with enough experience or motivation.
Cats. If you entertained the idea, you were already hopeless.
Source: Twitter
sanae's Tier List
sanae is a high-level North American 
C-Arcueid player.
ScrawtVermillion's Tier List
ScrawtVermillion is a top-level North American 
C-Sion and 
C-VSion player who has experience with a good portion of the cast.
His most recent tier list, posted below, is from September 2021. A video breakdown explaining his thought process is available here. All tiers are fully ordered.
See also: Scrawt's 2019 tier list and the accompanying video.
Sydoh's Tier List
Sydoh is a high-level F-Nanaya player from North America and the creator of the MBAACC frame data spreadsheet.
This tier list is from 2021 and unordered within tiers.
South America
Inso's Tier List
Inso is a top-level 
C-Miyako player from Brazil that used to main 
H-Hime and 
H-WArc.
Onemi's Tier List
Onemi is a strong and very, very knowledgeable South American player who mains 
F-Riesbyfe and has experience playing a wide array of other characters. This tier list is not ordered within tiers.
The tiers are described here:
S Tier: Same as the above, but tools aren't as oppressive/more notable weaknesses
S- Tier: Characters that are generally agreed on that there is a superior moon, but are very strong on their own (this tier isn't necessarily weaker than the one above, or stronger than the one below)(can also be common counterpicks e-g- F-Satsuki instead of C-Satsuki against Nero/Wara)
A+ Tier: Mixed bag of characters with super strong tools but notable weaknesses, and characters that don't have many weaknesses but have a single/pair of tools that are noteworthy, so overall not as oppressive
A Tier: Characters that even with their notable weaknesses, they still get good results in tournaments since their tools are always effective, or characters that people agree that they're good but lack the representation in tournaments (most characters in this tier have swingy matchups against others that can exploit their weaknesses e.g. F-Wara getting his movement limited against F-VAkiha, H-Sion losing important part of her 214A setplay against Hime, etc.)
A- Tier: Either good neutral, good offense or good defense, but not more than one at the same time. Some "jacks of all trades, masters of none" included.
B+ Tier: Unique tools that are very hard to use effectively and characters that have bad matchup spreads, but can win if they get going (highly momentum based).
B- Tier: H-NecoMech is the worst non-joke character
Z- Tier: Joke characters, this is the only tier that's ordered
Japan
Alicecolor's Tier List
Alicecolor is a top-level 
F-Hime player from Japan that also plays 
C-Hime and some other characters.
Ragu's Tier List
Ragu is a high-level 
F-Ciel and 
F-Wara player.
Yuhi's Tier List
Yuhi is a top-level 
C-WLen player.
Korea
BuzzBob's Tier List
S+ to A+ tiers are not ordered in detail (all very strong) but the rest of the list is ordered within tiers.
Europe
The Burning Moon's Tier List
The Burning Moon, also known as Web Booby Cop is a high-level formerly North American 
C-Nero main who uses 
H-Nero as a secondary that has also run a multitude of brackets and other events for various regions. Placements within tiers are mostly ordered.
Eika's Tier List
(ordered)
(ordered)
(ordered)
m's Tier List
m is a high-level European 
F-PCiel main with experience playing various other characters. Placements are ordered within tiers.
Overtuned
Strong
Care
