Nick Collison isn't going to set the world on fire, but if I'm building a team, I want this guy on it. He just makes all the right plays and is the perfect role/team player. In fact, some statistical metric a couple years ago rated him as a top 10 player in the NBA. Now obviously that's far from the case, but he's a heady player who plays great post defense and can more than hold his own on the offensive end without having any plays drawn up for him.
When watching the Thunder, most people are too busy ogling at Durant and Westbrook (and understandably so), but I'm always impressed with Nick Collison's play off the bench.