I'd have to disagree, if I was shopping for a new console, I'd go for the xbox (santa, plssssss!). I believe it's technically better in terms of graphics and performance, and I've the dvd playback is better too - and it has a great big hard drive to store all your important game data.
But of course whats a console without games, and true... PS2 now has GTA Vice City, but XBox has now got Splinter Cell, and the killer reason to buy is you can get XBox with Sega GT 2002, Jet Set Radio Future, Splinter Cell & FREE copy of Halo, all great games esp. Splinter Cell and the classic Halo for just £187 from Amazon here. Magic!