Here is how I would score it:
Graphics - PSP
Game play - DS
Realism - PSP
Sound - PSP (Barely, the sound is about equal, and both are loud as hell))
Other than gaming capabilities - Nobody, the magazine just added this one to even it out, why would you buy a system for the extras? (Besides, I have a video I-Pod.)
Highest system sales - DS (Can't change the facts...)
Highest game sales - DS (^Ditto^)
Screen quality - DS (I give it to them because if you look at the DS from the side you can't see, I friggin hate people that hover)
Durability/Life expectancy - DS (The PSP does a crapload of stuff)
Sports Games - PSP
2D Games - DS (I still like having some of those advance feel games)
Shooters - PSP (Gotta give it to PSP, Battlefront, GTA, and a 007 game!? That is awesome...)
Puzzle/Strategy Games - DS (Some great puzzle games came out for the DS because of the touchscreen ability, I think PSP had two or three that sucked.)
Platformers - DS (Oh god...the list goes on and on and on and on...Princess Peach, Sonic, Mario, another mario coming out soon, Veiwtiful Joe...)
Fighting Games - PSP (Man, I love the fighters out right now for PSP)
Least Ammount of Worthless Games - DS ([Curse] PSP! So many pool and casino games, don't yuo know those suck? I can buy the same quality game on my cell phone...)
RPGs - Draw (Only like 3 RPGs have come out for each system, while FF VII is coming out on the PSP, the DS has Castlevania)
Racing Games - DS (This can be argued about a lot, you may choose PSP if you like quality, but both systems almost have the same games, except for Mario Kart and Crash Bandicoot)
Systems - DS (There are at least 10 different colors of the DS worldwide, for PSP you could get either Black or White)
Style - Draw (It's up to you, personally if I'm trying to look cool I'll carry around a Micro, it's about the size of a good digital camera)
Matching Accesories - PSP (I think everything looks very nice, headphones, cases, etc.)
Cost - DS (Sorry, I don't want to make the DS look perfect, but it does have the better price.)
Overall - I really can't choose your system for you overall, if you are poor, yet you could afford twenty bucks once in a while and you don't mind carrying around a bunch of disks get the PSP, but if you can afford $430 instead of $300 and then $20 once in a while, then I recommend the DS. One point for each...
PSP - 8
DS - 13