If money was no concern... Sony A99II, simply because I'm somewhat invested in the system emotionally and financially plus if money is no concern I wouldn't need to worry about the death of A-mount anyway. Also, if money was no concern I would be buying a brand new one rather than used. And probably two just to have a backup. If on a tight budget and thereby restricted to buying used I would opt for the A99 mk1. Or A900/A850.
If I wanted a Canon (part of me do) it would be a 1-series, so 1Ds or 1Dx of some iteration depending on budget. Just because I want a 1-series 1Dmk2-4 would also work for my needs, if I could find one in reasonable condition and price, despite not being full frame.