The differences between the DS and the PSP make the topic quite debatable. I have both (My friend had actually given me his old PSP... it's not the best, but it works), and I have to say that I'm really not 100% for or against either. They both market very different styles of games, and the systems themselves are both quite different. Just because I've always been a fan of Nintendo however, I'd say that I sway slightly more in favor of the Nintendo DS.
