I hate using my PS3. Everything about it sucks aside from some exclusives and the 7.2 audio output. The online is clunky, multiplats are usually the worst version, manditory installs, a patch system that can't do cumulative patches, bad controller, etc.
I think the 360 has aged a lot better. You get the best version of most games, fast UX, 1080p upscaling, better (still 100% running) online, and your purchases carry forward thanks to BC. PS3 has some great exclusives (Demon's Souls), but a lot of the "prestige" titles aren't so hot now that the graphics are bad. I find it harder to excuse sub-HD sub-30FPS without the presentional wow factor.
I'm perfectly fine with Sony pulling a Nintendo and porting everything worthwhile to the PS5. Even if RDR became BC on PS5, it would still be based on the worst version.