Since the Wii is still my favorite console of all time I think it is massively underrated by the 'hardcore' crowd. So much of the narrative around it is false, from people not buying game other than Wii Sports when it has a software tie ratio of over 9 to it being a fad that only sold for a couple of years when it actually had an unusually long lifespan for a Nintendo home console, sold well pretty late in. its life, and was nowhere near as front-loaded in terms of sales as the N64 or Wii U were. And so many of my favorite games are on it.

In terms of sales, the Dreamcast and Wii U are the most 'underrated' relative to their quality. The Dreamcast especially since it had so few flaws either as a piece of hardware or in its software lineup. The Wii U had actual problems beyond bad luck in its competition that doomed it, and it was dead before it started getting games that could have gotten people excited enough to have sold systems like MK8, Mario Maker, and Splatoon. 3D World, Donkey Kong Tropical Freeze, Pikmin 3, Bayonetta 2, Captain Toad, Hyrule Warriors, those are all great, but no one would spend $300 on a system just to play one of them the way they would for Mario 64, Wii Sports, Breath of the Wild, Final Fantasy 7, or Halo.

Was PSP underrated just because of DS success? It sold ~80 mil units, was very popular and had huge first and third party support.

Wii U, Gamecube and Wonderswan

I'm going to throw in another vote for the Wii U. I really loved that system. Lots of great games, and while not every game made the best of the tablet controller, some did so quite well, sometimes in rather ingenious ways. It definitely deserved better sales than it got. Terrible marketing and that software drought (literally nothing of note in the 8 months between its launch games and the release of Pikmin 3) really hurt it.

It was popular, but just kinda overshadowed by the DS. So I see why people would find it a bit underrated.

It's underrated because it's barely talked about or discussed outside of emulation. Yet the PSP was very forward thinking for its time. Video playback, mp3 player, you could read books/magazines, surf the internet, and play almost PS2 quality games on it...and it launched in 2004. 

The iPhone wouldn't launch for another 4 years. The Kindle wouldn't launch for another 3. 

It's library is pretty great too. 

It's the first portable games console that wasnt made by Nintendo that actually received a lot of success. I just think it really should be given more credit than it has been. 

 Since people love throwing out 80-100 million selling consoles as underrated (scoff) how about a REAL underrated console back in the thread?

Neo Geo CD. It was a much more affordable version to play a lot of the great games Neo Geo AES had to offer. Before Covid and scams like WATA existed. Those games were much more affordable than AES/MVS carts. PLus it had a fantastic controller. This little guy. The stick is digital but clicky like an arcade stick.

It was a great system but it's one downside, the load times. They could be pretty long but at least you got to watch a monkey juggle.

A system can sell well and still be underrated; how a system is "rated" can refer to how it is treated in terms of gaming discourse rather then the number of units it shipped. There's often a disconnect between the two.

Virtual Boy obviously.

Always used to see neo geo in magazines but being a poor kid I could only dream.