If you combine the 7D with the 5Dii you get the 5Diii!
I totally agree with that statement! I own a 7D & a 5D Mk III. The 7D is very ergonomic camera body with a really good AF system, good IQ & ok at best ISO performance. The 5D Mk II has a much better IQ & MUCH better ISO performance than the 7D, but the AF system leaves MUCH to be desired. If you take the best of both of those camera bodies & you inject a healthy dose of improvements into the AF system, the IQ, & the ISO performance then you have the 5D Mk III. It really is up to you on how you use the camera & your budget as to which one you pick. I just wanted to give you some info to help make that decision a little easier.