DS. I don't know why I think that, but the DS is the way forward.

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PSP because of all the stuff you can do to it.

i want DS i miss mine cuz it brokes

i would def say PSP... I personally don't enjoy the DS as much...

I'd say DS because it's got that new-fangled touch screen stuff... XD
Plus, not only can you play your DS games, you can also play your GBA games.

PSP... It's basically an iPod with video-games attatched. Good, and fun, but DS is better.

if you want quick games which are pretty fun - DS
but if you want something that plays movies and is more multipurpose - PSP

I prefer the psp because the graphics are better and it has alot of awesome games (crisis core, disgaea etc), but as has been mentioned, it does have a pretty short battery life. I also think that including a touch screen in a console was a stupid idea as was the dual screen thing.

NDS has a sensible touch screen and a bunch of good games and massive new ones in the way!
It's a very good choice!

DS. Not only is it semi-backwards compatible (can play GBA games but not GBC), but it has cool new touchscreen technology and innovative ways of solving puzzles (People who've played Phantom Hourglass should know what I mean)

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I have a DS but the PSP is very shiny and nice. I'm also a big Sony supporter, but I'd have to say DS wins it for this one. However, I'm all for the Playstations.