Yeah I know, it's life's toughest question.
This means no Nintendo, Sony, Microsoft, or Sega, guys. Think outside the box.
Not going to make it a poll because there are too many obscure video game systems to count. And besides, what you or I consider "obscure", others might think of as mainstream.
So I'll start things off and give a little love to Atari's last hurrah, the Atari Jaguar.
The image issue with the Jaguar was that it was really Atari's last hurrah and last chance to get it right, and Atari simply didn't have the resources to fully execute. There was nothing wrong with the system's technology per se, but, like the 3DO, it was caught in a weird in-between phase where 2D (and sprites) was still the dominant game "format", but 3D (and polygons) was starting to be the hot "new" technology. The only system really prepared for that was the PS1.
It also naturally didn't help that, despite promises of a flurry of third party software, releases were sporadic at best and often unpolished. The 3DO had this issue to a degree, but I suspect that an easier development environment and the CD format at least enabled a more robust release schedule after a very slow start (and a start filled with too many edutainment titles).
One wonders if the Jaguar wouldn't have stood a better chance forgoing cartridges in the first place and just being a CD unit, albeit at a higher price (and this still wouldn't have positioned it any better against the PS1).
Anyway, what is it I like about the Jag?
Well for me, and I'm not the only retro gamer/enthusiast that thinks like this,
I really like 2D games, and I really like arcade titles, and the combination of a TON of the Jaguar's library synchs with me perfectly. I love the 2D games like Zool 2, Ultra Vortek and Rayman. I love the arcade titles like Tempest 2000 and Missile Command 3D. And I love the cross between the two with titles like Zoop, NBA Jam TE, Raiden, Defender 2000, Protector, Protector SE, Power Drive Rally, Super Burnout, Breakout 2000, and a couple others. Something about all of those titles just really clicks with me.
I also really liked the early 3D game concepts. Things like Club Drive, I-War and Cybermorph I found a lot of pleasure in, while I don't find the same sort of pleasure in early PS1 titles.
So, in my opinion, the Jaguar is NOT a bad console. It's library isn't that big, but there is a very good number of titles that I do really appreciate on this system. Yeah, the controller doesn't work for everyone, and there were some colossal busts like Checkered Flag and Fight For Life, and I can totally understand why games like Club Drive, I-War and Cybermorph are not everyone's cups of tea. But, that doesn't mean that the system as a whole doesn't hold much appeal. For me at least, it does.
I see this board as a whole has very few active forumites, but it would be interesting to read the thoughts of those that might take the time to contribute to this thread.