GOD! No one's mentioned CARNAGE!!
Deadpool is definitly sweet.
Cable kicks major asses, although being a Summers really hurts him 馃槈
Mr. Sinister is totaly sweet.
Nightcrawler is all bamfy and sheeit.
Gotta go with Omega Ted (Red)
Sabretooth.
Doom!
Thanos, owner of the universe.
Venom.
The list is just too long...