^ If you define what's "better", you can be wrong.
What if I want to focus a different part of the truck? What if I want to shoot with a different shutter speed? What if I want to shoot with a wider aperture? What if I only want certain parts of the truck to be in focus? What if I want the background blurred? What if... In regards to the OP, you would probably benefit from a table that shows all the comparison (I couldn't find one to link from here, but you can search for one).
Here is a page that talks about the 7D Mark II rumors:
http://www.canonrumors.com/category/...on-7d-mark-ii/
In my opinion, full frame is better than frame crop. That's just my opinion.