Since I have a PSP 2000 and a DS Lite, I would have to go with the PSPGo. After beating the Ace Attornery series.. there's really not much on the DS that makes me say, "DS has the better game library". Right now I'm just stuck waiting for Golden Sun DS and SoulSilver. There's just alot more PSP games I'm interested in, also quite a few PSN and PS1 games that I can buy from PSN for me PSP.
Having all of the games on board the systems internal flash memory is nice... I don't have to resort to buying some R4 or M3 and pirate games like a criminal to do it. And I have the option of a Memorystick micro slot to expand on the already available 16GB available out of the box. I also like to listen to quite a bit of music.
4 ≈ One







