Simple answers:
Alex Pagulayan: Anyone that doesnt put him on the top of thier list must be blind, i am not just saying this 'cause he one the WPC. I have been one of his biggest fans for a while. Amazing attitude at the table, always looks like hes having fun. Great break, great stroke, plays the game as good as anyone.
Luc Salvas: Not the greatest player to ever play the game, but usually has a pretty good showing in most tournaments he enters. Lightning fast player, noones ever gonna bitch about him 'slow-playing'. Great attitude as well, looks like hes always enjoying himself at the table.
Efren Reyes: Maybe the best player to ever play the game. Great positions player, ball management is second to none. Ball management is what i call controlling balls on combos, breaking clusters and controlling multiple balls. Shrugs off his misses, great personality, knows how to play little jokes to keep the audience laughing.
John Horsfall: Im a little biased here because he lives in the same town i was born in, maybe born in the same hospital. I love studying him, where as the others i like just 'watching' more. Great preshot routine, patient, great mental strength. Watch him take out Frankie Hernandez in the 2003 US Open if you want proof that he is a great player.
Keith Mcready: The only player i know that talks to everyone including his opponents during a match. Always seems like he's just playing pool with a buddy, not playing a tournament. You get to see something absolutely incredible in just about every match he plays.
The man i forgot: Re-edit post:
Buddy Hall: Greatest stroke i have ever seen, its insane how softly he can hit the ball and still draw it back large distances. Pure beauty to watch that stroke of his.
Notables: Yang Chin Shun, Earl Strickland, Mika Immonen, Corey Dueul, Steve Davis, Francisco Bustamante.
Great Players that arent so fun to watch:
Ralf Souquet, Johnny Archer (although he isnt playing as slow anymore).