I'll be perfectly honest - I find it very difficult to discern the famous players' styles. If shown a game between say Kasparov and Karpov, and not being told who played white, I could probably guess correctly based on the opening used. However, take me into the middlegame, and I cannot tell who is who. Same for the endgame. Only the opening gives me the general guidance. Thus French & Dutch - Botvinnik, Sicilian Sozin - Fischer, Benoni - probably Tal and so on. Smyslov had this predilection for fianchettos both on white and black side. But Spassky is a chameleon - who knows what he's going to play?
That said, and having played through the games of many champions, I do feel that in terms of being recognizable, Capablanca's style is easiest to spot. No fireworks in the opening, quiet play for the most part, and suddenly the opponent has a losing position. I don't know how he did it, but his games are so effortless, it is uncanny.
Logic, determination, creativity, Botvinnik.