LOL at how a this topic has devolved into an insult-fest.
Personally, and based on limited info, I think Clayton will have the longer and better career than Collier, if not as starter, then as a quality bench/role player. Clayton isn't perfect, but he lacks a glaring flaw that (other than perhaps his small size) that threatens to derail him. Collier has that single flaw: he can't shoot. I think that non-shooting guards will have a very hard time thriving in in today's league, regardless of their other virtues. I suspect that by the end of the coming season or by sometime next season, Clayton will have supplanted Collier as our lead PG, barring the emergence of someone else.
I am rooting for Collier; I'd really like to see him succeed and become a quality starter. I like how he plays. I like his attitude. However, I'm more inclined to see his trajectory as a someone who's a fringe player in a few years, unless he can figure out how to shoot at a more reliable clip. I may well be wrong. I hope I'm wrong. We'll see.