Sega Dreamcast looked so good if you used the S-Video or better yet, the VGA output capabilities of the system. Arcade-perfect ports, & it was a fun system!
The Dreamcast was an amazing system, no doubt Sega's best product ever, and a gem of a system to this day (I have three of them in my closet, my great great great grandchildren will know first hand the joyous calamity that is Crazy Taxi).
Other than Dreamcast I almost completely avoided Sega.
In the early 90's curiosity got the better of me and I asked for a Game Gear on my birthday, 100% regretted the decision. That cemented my fanaticism for Nintendo which lasts to this day (even though I don't have a Switch yet, still waiting for the inevitable third or fifth revisions of that piece of hardware. My launch day Wii U more than makes up for the lack of a Switch though, Nintendo doesn't need my money right now).