This is the current revision of the official tier list created by the Smash Back Room, ranking each character in SSB4 from best to worst based on votes from over 53 professionals at said game, current as of version 1.1.7. Please note this list doesn't account character customization, due to their collective ban post EVO 2015 in competitive play. Also, please note that Mii Fighters were excluded entirely from the tier list due to a large stagnation of data on them, and their legality being pretty shaky. Finally, Pit and Dark Pit were voted on as the same character due to them being almost entirely the same in every aspect. Now, on with the rankings!'
S Tier
1: Bayonetta:
2: Cloud:
3: Diddy Kong:
A Tier
4: Sheik
5: Rosalina and Luma:
6: Zero Suit Samus:
7-8: Fox/Sonic:
9: Mario:
10: Mewtwo:
11-12: Marth/Ryu:
B Tier
13: Corrin:
14: Lucina:
15: Pikachu:
16: Meta Knight:
17: Lucario
18: Green Mario (I mean, Luigi):
19: Captain Falcon:
20: Princess Peach:
C Tier
21: Olimar:
22: Donkey Kong:
23: Toon Link:
24: Bowser:
25: Villager:
26: Greninja:
27: Mega Man:
28-29: Ness/Lucas: