The best system ever, is undoubtedly the SNES. It is still unrivaled even today in the number of great, ground breaking RPG's. (Secret of Mana anyone?)

For you homos that say that the D-Cast sucked, you are just one of the many that gave into Sony's commercial propaganda. When PS2 was coming out they focused their marketing on degrading the Dreamcast as opposed to promoting the PS2, and of course, the legions of 12 year olds bought it. Well, as of right now, the Dreamcast is still better than the PS2.

As for the worst system of all time, the Jaguar does take the cake. Just look at the fuckin thing, it cant decide weather it wants to play CD's or cartridges. Not to mention that every single one of its titles sucked.