I'm a Sony fan, but from the earlier days... I still shoot an a700 and lots of Minolta era A mount glass.
In the mirrorless category I have an Olympus OM-D E-M5, so can't offer suggestions on the Sony mirrorless products, I *do* however have my eye on the A7 MkII, at least once they start being available used.
I'm very interested in hopping aboard with Sony. But I'm waiting to see how the successor to the A7r affects pricing (and also seeing if there might be a A7s successor with a bit of a bump up in resolution; I'd be wonderfully happy with a 20MP version of that camera).