I have been on the Kyle Orton bandwagon, personally.
Take a look at this from NFL Draft Countdown:
Strengths: Has been extremely productive in a pass-happy offense...Has a ton of experience against top competition...Great size...Good leadership qualities...Has a very strong arm...Accurate passer...Competitive...Tough and will stand in the pocket to deliver the ball.
Weaknesses: There are concerns that he is simply a system quarterback...More mobile than he was early in his career, but still not great in that area...Will birddog his primary receiver...Struggles under pressure...Played out of the shotgun for the most part...Inconsistent as a senior.
Notes: A better prospect than Drew Brees was coming out...Had an up and down senior season and got off to an amazing start before leveling off...Has the tools you look for, but will likely be one of the most debated prospects in this draft...May be a boom or bust type of guy.
Orton has the look and size of a QB. I'm not sold on McPherson, Orlovsky, or Frye, or any of the other later round QBs.