The Hegel, Bryston, and Marantz will all be good, but will have different sonic presentations.
The BCD-3 will be strictly neutral. Never heard the Mohican but odds are it will be close. The Marantz will be a little warmer. A lot of Audiogon members rate it very highly (check the threads). I own the Bryston and use it in my second system. I wanted something a little warmer and got a Luxman.