I'm gonna give a shoutout to the Saturn.
It had its faults, but its also got a scrappy underdog charm that's quite endearing, plus it has some really cool games like Panzer Dragoon 1 and Zwei, Radiant Silvergun, Burning Rangers, Powerslave, Nights into Dreams...
Whereas the Dreamcast gets a lot of love these days, the Saturn remains largely forgotten, which is a shame.