My favorite player/s are the players who, are not superstars on their teams but are vital parts of their success.
I believe that a team needs a superstar or two, but needs atleast three of four of these guys to win.
A.) A wing who can defend and shoot efficiently when left wide open. He doesn't have to be in the league leaders of steals (but of course if he is, it's a bonus), he just needs to be pesky enough to bother other wings, making every shot they take contested.
B.) A big who can rebound plenty and has good hands or a sweet mid range stroke (it's a bonus to have both but I'd take one of the other) and plays tough. Like the wing, he does not have to be a very good shot blocker (again, an extra gravy if he does), he just needs to be tough, a guy who will challenge every shot inside, assumes every shot is a miss and box outs all the time and not get pushed around in the block.
If you have role players like that, even with just one Superstar, winning is easy.