Upload & Sell: Off
I voted 2. Although I'm not sure exactly what "features" would push it into #1.
I only have one and while I shoot primarly with one camera, I use two cameras for small parts of the day and now that I've edited several weddings with both, I'm blown away by how bad the focusing is/was on the mk2. I mean seriously, I obviously dealt with it just fine, but the new one must be so much more brainless that the "omg-make-sure-you-get-this-in-focus" part of my brain that used to have to run 24/7 on the mk2, is possibly no longer functioning. 2/3 of my shots from the mk2 nowadays are worthless.