Smash 4 Tier List v2

S TIER (Flat-out overpowered)
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1. Rosalina & Luma
2. Diddy Kong
3. Sheik

A TIER (Always viable. Will always have a strong tournament presence)
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4. Yoshi
5. Zero Suit Samus
6. Sonic
7. Greninja
8. Mario
9. Lucario
10. Pikachu
11. Fox
12. Duck Hunt
13. Bowser Jr.

B TIER (Not quite as good as A tier characters, but still very good)
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14. Capt. Falcon
15. R.O.B
16. Marth
17. Ness
18. Bowser
19. Robin
20. Little Mac
21. Olimar & Pikmin
22. Villager

C TIER (Good, but not great. Requires putting in work to do well with)
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23/24. Pit/Dark Pit
25. Palutena
26. King Dedede
27. Mii Brawler
28. Charizard
29. Lucina
30. Ganondorf
31. Pac-Man

D TIER (Have major weaknesses. Doing well with them is difficult, but not impossible)
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32. Kirby
33. Link
34. Peach
35. Samus
36. Wario
37. Jigglypuff

E TIER (Very disadvantaged and very difficult to do well with)
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38. Shulk
39. Falco
40. Toon Link
41. Mega Man
42. Mr. Game & Watch
43. Ike
44. Dr. Mario
45. Donkey Kong
46. Zelda
47. Luigi

F TIER (The absolute bottom of the barrel. Near-unusable in almost any competitive situation)
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48. Meta Knight
49. Mii Gunner
50. Wii Fit Trainer
51. Mii Swordsman