My all time favorites.
This is my first list so bare with me...
2. Deadpool
3. Lobo
4. Moon Knight
5. Wolverine
6. Cyber
7. Venom
8. Adam Warlock
9. Spawn
10. Angela
11. The Celestials
12. Penance
13. Azreal
14. Sabretooth
15. Juggernaut
16. Dark Phoenix (Jean Grey)
17. Cable
18. Nova
19. Joker
20. Colossus