SS Power Amp upgrade

My current one is a Hafler 9500, nothing wrong with it, just the next victim of my upgrade bug.

Considering the following options:
McIntosh MC7300
Hafler DH500 with upgrades from Musical Concepts
Bryston 4B ST or SST

Each one above hits different / competing parts of my brain.

But at the end of the day, I'm wondering which just sounds better.. warmer, natural, effortless.

So, if you have first ear knowledge of these amps I'd like to hear your comments.

I listen to jazz, latin, rock. My pre is a Mapletree ultra 4A SE (tube, love it) Sources are Oppo 980 stock (for now...), IPOD, and Technics 1200 TT. Mains are B&W DM640s but probably being replaced next (VR4-JRs or TBD).

Regards,