Welcome to Mutant Education Corner!
Mutant classes are really gauged on what kind of potential a mutant has-- At least to my understanding. Many mutants are referred to as 'potentially' Omega, or Class 5. Not -every- mutant has this classification, even if they are exceptionally powerful. A mutant may be a Class 5 and not even realize it, if they can't unlock your full potential. ((Blame Marvel for never explaining this anywhere I can find-- Most of this comes from varying Marvel sources. I don't own it!!))
Mutant Class Ranking Examples for Homo-Superior: ((This isn't law!))
Class 5/Omega: Jean Grey/Rachel Summers/Elixir/Magneto - Omega mutants are the most powerful class of mutants. Supposedly, their powers have virtually no limits. All Omega mutants are also Alpha mutants but not all Alpha mutants are Omega mutants.
Class 4/Alpha: Emma Frost/Ice Man/Gambit - The Alpha Mutants are the most powerful and most feared mutants. Alpha mutants have extremely powerful mutant traits without any significant flaws. Less than 10% of mutants are Alpha mutants so they are very rare.
Class 3/Beta: Wolverine/Mystique/Sabertooth - As far as how potent their powers are, Beta Mutants are on the same level as Alpha mutants. The difference between Beta Mutants and Alpha Mutants is that the Beta Mutants have flaws, albeit very small flaws. The Beta mutants are also believed to be about 10% of the mutant population.
Class 2/Gamma: Rogue/Blob/Marrow - Gamma mutants have very powerful mutant abilities, but they have serious flaws. Unlike the Beta mutants, a Gamma mutant's flaw is a major flaw that makes their life very, very hard.((Rogue is the BEST example...))
Class 1/Delta: Forge/Domino/Callisto - Delta Mutants are like Alpha mutants in that they don't have any significant flaws. The only problem is that Delta mutants don't have powers that match an Alpha mutant, or even a Beta or Gamma mutant. At least 50% of mutants are Delta mutants making them the most common type of mutant.
Now from here on out, it gets worse-- Levels that don't even COUNT as classes!!
Epsilon-Delta Mutants: Andrea von Strucker (Earth - 616) - Epsilon-Delta Mutants are mutants that don't always manifest their power. An Epsilon-Delta's power will only manifest in certain circumstances and they don't use their powers very often. Their powers may manifest due to trauma, influence from somebody or somebody else or physical contact with someone.
Epsilon Mutants: Beak - Epsilon Mutants are unfortunate mutants. Epsilon mutants pretty much have no chance of having a regular life in society due to their major flaws. If that isn't bad enough Epsilon mutants also only have minor superhuman powers. About 20% of mutants are Epsilon Mutants. ((Think inhuman appearance or if their mutation makes it impossible for them to function normally. Any accompanying "superpowers" would be next to useless... ))
Zeta Mutants: Harvey Elder - Zetas are not mutants that have powers like the X-Men and other mutants. Zeta mutants are simply humans that have defects. So Zeta mutants would include humans that people would refer to as "circus freaks".
((We generally don't use these classifications when we RP, I think because it could get complicated... But most students won't even be Alpha, or Beta-- Unless they've been at the institute a very, very long time. Omega is actually very very rare. The classes don't actually gauge your powers, but what KIND of mutant you are.))
But I hope this helps everyone!
Academy X: A X-Men RPG (Accepting Apps)
A literate, paragraph X-Men (Marvel) Role Playing Game