Voyager's is pretty solid, can't complain too much about it. Wide for the camera shots, but as a functional bridge, pretty good. Enough space, everyone's facing the right way, not overblown or too busy. Double turbolifts, easy access to briefing room and ready room. Maybe Tom could have shared that giant console with a second person, though; lots of space there he can't possibly reach. Always thought that functionally, it made sense for weapons to be next to helm, as the two of them need to be most in sync during a battle, but not a biggie.
Looking at pics, the Sovereign bridge isn't too shabby either. Maybe a little dark in color, but layout is good. Enough consoles, facing the right way, Captain raised up a little more so he can see what's going on up front, etc. Probably my backup choice.
Defiant fits the space 'right', and is laid out well for what is it, just not a favorite personally. And really limited with regard to mission profile, which again is correct for what the ship IS, just not the bridge layout I'd want if I had a ship and you were installing my new bridge on Tuesday.