In reply to Hannes:
> No doubt the AF and video of the 70D is far better but in the still image quality comparison it doesn't have much going for it
That's nonsense, sorry (having looked at lots of 1DsII, 70D, 6D (mates camera), Sony A6000 (mine) & Fuju XE-1 (mine) RAW images). I'm using the 70D with L glass as well. The 1DsII images at 100-400 ISO still hold their own as well!
Nick Livesey uses a 7D - doubt he finds image quality lacking! (7D, 7DII aand 70D share a lot in common).
I just didn't take to the whole feel of the 6D and its autofocus. It felt cheaply made for the money and purposefully lacking in features to prevent cannibalism of 5D sales.
But, have been really impressed with the toughness of the 70D. Its been in the rain, in mud, in snow, covered in hydraulic oil (hose split on JCB I was supervising and I and it got soaked) and dropped kicked to save it falling down a trial pit. Don't worry I won't ever sell it on....
Crushunit:
Why not try and borrow a 6D (or hire one).