My favorite is my trusty, reliable Minolta SRT202 (it's been thoroughly CLA'ed). However, it's "Favorite 35mm Camera" status is about over. I've bought a Minolta XE-7 in EXC+ condition (aside from needing a CLA) and i believe it will usurp the "Favorite 35mm Camera" throne from my SRT202.
For a compact 35mm SLR, my favorite is my Minolta XD-11 (D variant). It's super smooth film advance/shutter is a joy to use.
Honestly, i've been shooting med. format when i'm doing any photography, but my newly acquired XE-7 is a great motivator to shoot some 35mm!!!