Considering an upgrade from Canon 60D (yes, another 'should I upgrade' post)

Your only FF option is the 5D3. You 'd be a fool to swap the 60D AF for the archaic on in the 5D2 and 6D... Just to gain a slight (1 to 1.5 stop advantage)?

I have both the 60D and the 5D3. The latter has an advantage in IQ, but the 60D is still my main travel camera.

Edit: OP looks like we posted simultaneously... Congratulations on your buy, enjoy it!

With a skilled photographer and a good lens, and a 60D, I've made (some) pictures as good as a picture can be, unless enlarged in PS. Also, I can easily print it to at least to 22".

Just a quick update if anybody is curious. I'm LOVING my Sony a7II and am so excited to use it. The person I bought it from was super nice and I got a good deal on it. This marks the end of an era with my 60D, as I need to free up money and so can't justify keeping the camera. Thanks for the input to those who gave it.