Selecting the all-time best of anything is always a daunting task, and that’s especially true of cameras, which have undergone a seismic paradigm shift in moving from film to digital. It’s also a great way to start arguments.
Nikon FE2. I've had a few of the FEs and FE2s. Well made, solid cameras. Drop in the K3 focusing screen from the FM3a, and have a nice, bright viewfinder. Never much cared for the match-needle metering display, though. I shoot a lot of low- and available light and appreciate the led displays.