I will break a lance for the (cheaper, more common) Canon 7 with selenium meter. My first Canon RF was the elegant P, and reading all the comments at Stephen Gandys Site whatsoever, never planned to buy a 7... but I dearly wanted a 2/35 lens for a decent price and finally found one in a bundle with a Canon 7 (small lens on a big body).
Finally, the body enjoyed me as much as the lens. Crafted excellent as well as my P body, meter working. When the P is equipped with Canon-meter, same weight and size.
Finder brightness is on the same level with the P, slightly dimmer than my Bessa-R.
RF exactness is slightly better with the 7 than the P. Bessa-R is adequate but not as good. I feel strenous with the small RF spot at the Bessa-R compared to the bigger one at the Canons, even if I can focus my 1.8/85 with all bodies correctly.
Finder quality, Peter Dechert wrote in his book that the last series, 7Sz has an improved finder, but I wasn't able to check that. Be happy if you can get one, but otherwise, I think it's more a question how a finder of a particular camera is aging. There are good and bad ones.
The selenium meters: If working, there are very usefull (in daylight) and fast thanks to shutter speed coupling. Only at night, or dark inhouse shooting I need an external meter (mostly negative film)
Maybe the old CdS-meters are a bit better, but not much... 1.35v is a pain. I know it from my Pentax Spotmatic. Wein cells are a pain for "rare users" most collectors are with a couple of bodies.. better to tape-up the selenium meters when not in use than put-in/ put-out batteries.
The missing accessory shoe at the 7 ...a little bit stressed argument, IMHO. I saw that thing at 50-70 $ a couple of times, makes you 7 a handy camera if your attitude is shooting with workers gloves...
You really want a lens wider than 35mm on a 7? With 28mm, try the whole viewfinder image without frame. Should workl. 25mm, not kidding? first question, which lens? Really the rare and expensive Canon? If so, you obviously have the money for the "rareness surcharge" of a 7S or 7Sz.. if the answer is "no, just a Voigtlander 25mm Skopar" than look also for a cheap Bessa-R. When hiking, the weight bonus speaks for the Bessa. The Canon steel is equivalent to 2 compact wideangle-lenses. In the city however, the Bessa isn't nearly as cool as the Canons...
