I've been really impressed with McCoy. It's funny, he hasn't put up the stats (yet) that he did last season up to this point, but the guy is just a natural born leader with a crazy fire. You see him screaming at his teammates, trying to psyche everyone up...I respect that a lot. And don't buy into that crap that he's not a "good" athlete because of his size. He's taller and bigger than Drew Brees with a comparable level of accuracy. Thats good enough for me.
Tebow shares the same competitive drive that McCoy has, I just can't figure out his funky mechanics. You can't deny his production or leadership skills...but that slooooowwwwww windup scares the hell out of me. It's seriously slower than Jamarcus Russell's. I think he'll eventually be a good QB in the NFL, but he'll need a really good QB coach and a couple of years to get it.
Clausen strikes me a system QB, but I've only really started watching him for a few weeks...and unfortunately Bradford hasn't played much this year because of his injury.
Everything about McCoy makes me think he's going to be the next great QB in the NFL.