My only C/Y camera is the Contax 159MM. It is probably my favorite 35mm SLR, but I don't use it as much as my Canon F-1n or A-1 because I have so many more Canon lenses. Zeiss gets expensive in a hurry!
Don McCullin - Nikon F by martsharm, on Flickr
Thought I don't know if he took a picture of anything with it afterwards...
Yashica FX3 is a nice alternative
It's light, albeit, plasticky
Here's my FX-3. Just checked and all speeds work with no battery.
This is why I keep it as a backup to my RX, AX, RTS and RTSII! :-)
But seriously, through the years I've had issues with all but the RTSII and the FX-3.
Back when my dad did camera repairs, the most often cameras he saw in the C/Y mounts were 137MDs and 137MAs (plastic shutter parts would crack under heavy pro use) and RTSIIs
I guess this was due to their popularity