Out of these choices:
Sony Playstation 2
Sega Dreamcast (I've known people who disagree, and say that the DC was part of the N64/PS1 era. Though, I highly doubt it was meant to compete with those consoles)
Nintendo Gamecube
Microsoft X-Box
For me, I guess it would be the PS2. I loved it, and had SO many great games. It had it's obvious flops, like any console, but I'm also bias towards the PS1/PS2 consoles. I also loved, and still love, the Gamecube. I acually still play several of it's games on my Wii, while I haven't touched a PS2 game in ages. I had tons of fun with the DC, but....it, never really measured up to the PS2 and GC at the end of the day.
How about y'all? What was your favorite console of the last generation?