Hundley is a much more accurate and accomplished passer than Kaepernick coming out. Kap is straight line, faster, and has a better arm, probably one of, if not the strongest in the NFL. They ran similar offenses. Kaepernick had a way better OL in college. Kap rarely went through progressions, and still doesn't. You can see Hundley go through them, in all of the clips in this thread.
I'm not saying he is perfect, he needs to work on certain things that he hasn't been asked to do, same as Petty. I don't think he will go top 10, but he won't make it to us in the 2nd round, which is my opinion. In this draft, which is one of the poorest QB drafts in quite a while, he's a top 3 QB.
And that's all I will say about him. QB's are hard to evaluate and project, especially in today's college game.