The Sega Saturn is a beautiful looking system.
(Image taken from retrorepairsandrefurbs.com)
I think it has my favorite design of all of the Sega systems; I own a black system identical to the image above, but I'd also love to own a gray model at some point. I don't usually feel the need to own more than one kind of a system, but the system has such a nice, sleek look to it!
I'm a very new owner of a Sega Saturn, and lacked a means of playing through the system comfortably through emulation, so I haven't had a long period of time to play through much of its library just yet. Those that I have played, such as Sega Rally Championship and Virtua Racing, look and play great! Sega Rally sure is difficult to get first place, but it's certainly a fun time!
Fighting games being my favorite genre helps quite a bit, given the Saturn's reputation for well-made arcade ports of classics like Vampire Savior and Street Fighter Alpha 2 Gold. More obscure fighters like Waku-Waku 7 and Groove On Fight are also very unique outings for the time! Of course, the 3D fighters on the system such as Virtua Fighter, Dead or Alive, and Fighting Vipers all have a low-poly charm to them, and are great in their own right, too!
I look forward to seeing the rest of what the system has to offer - titles rarely mentioned outside of the Sega bubble, such as Astal, Shinobi X, Princess Crown, Guardian Heroes, and the Shining Force titles are all games I plan to check out in the near future!