I'm not going to do a 'top 10' ranking or anything, but I'll list 10 special players in NW's history who I regard very highly, based on a variety of criteria: either from community tournament performances/wins, their peak skill-level or dominant periods in the game, including my personal appreciation of them as a player. Just to be clear, there are plenty of other names I regard very highly and this is not an attempt at an objective top ten. Listed alphabetically:
Akame
Axiom
ClaSh
Eddie
Harrier
JackieChan
Mopin
Moskito
Rikimaru
Xeon