I think Emeka won defensive player of the year and was a finalist for Naismith but did not win it. No doubt Emeka could have had a better career if not for injuries, but avoiding injury is part of the test of greatness IMO. Ben Gordon was a nice player, but he didn't live up to expectations for a #3 draft pick.
Donyell is my favorite Husky all-time as you might guess. But he was considered one of the greatest busts in the NBA draft history because he was the last draft class without a rookie salary cap. $42M at the time was a lot of money for a marginal player. I don't know this for a fact, but I suspect his lopsided deal was a significant catalyst for the rookie salary cap. His contract really handcuffed the Timberwolves. He hung around the league though and salvaged his career turning into a decent starter, though not an all-star.
I'm still waiting for UConn to have a top 3 draft pick that turns into a bona fide superstar. The way it is structured now, not sure I will see it happen. But as long as UConn keeps winning, I couldn't care less really.