since this is the kinda shit I love reading about, off the top of my head:
- N64 didn't get a revision at all - there were a lot of different colors, but were no different than a launch N64. closest thing was the RAM Expansion Pak that increased the RAM from 4mb to 8mb
- Gamecube didn't get a slim version
- of course Virtual Boy didn't get a revision, lol
Also, the only Nintendo console where the revision was actually better than the launch one was the Japanese AV Famicom - basically the JP equivalent of the Western toploader, which had modular controllers and AV support. American frontloader NESes had those from the beginning.
The downsides of every Nintendo revision:
- Toploader NES: no AV out - required an RF switch. also had a visual artifact on screen, the kind you wouldn't notice until someone points it out to you and then you'll see it forever
- SNES Jr.: no eject button - similar visual artifact to the toploader NES (faint vertical line on screen iirc)
- Gamecube: got a silent revision that removed the digital AV port, meaning you're stuck on 480i. Older GameCubes could use this with component cables for progressive scan
- Wii Mini: one USB port, no SD card slot, no internet connectivity whatsoever, no Gamecube support (despite being a toploader), no GCN controller & memory card support. this thing fuckin sucks
- Switch Lite: no modular joy-cons, no dock, no digital game sharing with your full-size Switch if you have one, and no TV-out; this is permanently a portable
Their revisions of their portables are usually upgrades or sidegrades, though there are oddities here and there - GB Micro couldn't pay GB&C games, and DS Lite's GBA slot let GBA carts awkwardly stick out.