I have a Minolta CLE, a Leica CL, a Leica M6TTL 0.58, and have recently bought a Bessa R4A. All of these cameras have pros and cons - I'll include the CL and M6 in this as they provide useful comparisons, and as far as I'm aware the R4A is the same as other Bessas apart from the viewfinder:
CL: great little camera - small, light, basic (this is a good thing!), solid and sturdy. If I want to travel light with my 50mm lens I use this. But basic is not always best, and especially with wide-angle lenses I miss autoexposure as it is enough hassle to have to use an external viewfinder
M6TTL: everything one expects of Leica - great viewfinder, (especially with the 0.58 for me as a glasses wearer), solid, dependable, gorgeous to use, but heavy (well, heavier than the others listed here!)
R4A: not as substantial as the M6TTL, but this makes it lighter. Some simple benefits - easy film loading, film canister window, auto exposure, the 21/25mm framelines in the viewfinder are just great! My main gripe with this camera is the bizarre placement of the strap lugs, which mean it tips backwards when fitted with the small wideangle lenses it was designed for - this is irritating and uncomfortable. The manual frameline selection doesn't bother me at all.
CLE: If I was happy only to go as wide as 28mm, and didn't want to use a 50mm, I would only use this camera! It is small, light, easy to use, reliable, and has a great viewfinder. The auto exposure is so good that the slight hassle of having to meter in auto first before switching to manual doesn't bother me as I hardly ever need to do it.
I take my photos while out and about in the noisy world - while the shutter sounds unquestionably differ, and the M6TTL is certainly the quietest, none of these cameras is noisy, and the shutter sound has never bothered me on any of them. Dependence on batteries also doesn't bother me - I just carry cheap spares in my camera bag. Build quality is absolutely fine on all these cameras - yes the M6 is the best, but none of them is shoddy!
If I had to choose just one of these cameras I simply don't know what I'd do - thay all do their own thing really well, and each has its own niche. But if I absolutely had to decide, the CL would probably be the first to go, albeit reluctantly, as apart from size (on which the CLE matches it) it doesn't do anything better than the M6. I would probably lose the M6 next, as although it is a gorgeous piece of kit the physical pleasure of using such a wonderfully engineered camera is not as important to me as having something smaller and lighter. I think I'd then lose the R4A next, as although I hugely value the opportunity to do without external viewfinders I dislike the way it tips back on the strap. Which means that if I could only keep one rangefinder it would be the Minolta CLE! It's not perfect - I especially wish it had 50mm framelines - but it's just such a lovely little camera.
I have a minor concern with the CLE in the oft-mentioned potential for it to go wrong and not be repairable, but it has never let me down, there's nothing to suggest that it will go wrong, and if the worst came to the worst I'd keep it for spares and buy another one...
(and if anyone has a kludge to stop the Bessa tipping back on the strap I'd love to hear it!)