I've been contemplating this so much that the other day I actually had a dream about using a Bessa hahaha. Like I said I'm leaning toward the Leica or Zeiss. The Leica seems like the more appealing option right now because of the resale value, cheaper price, and the fact that I never really use aperture-priority because I like manually selecting my values. Paired with the M6 would probably be a Zeiss 50mm f/2 and/or something from the CV lineup.
I guess the next question is how much can I expect to pay for an M6 in good condition? I know earlier in the thread I put the price at 1200-1500 but was wondering what a more accurate price would be.