I think i want a handheld....Why choose a PSP?

[PSwii60]

Many good things that can be said about a PSP have been said already (Media capabilities, graphics, brighter screen, better speaker, etc)

PSP is more fragile than PSP, but than DS is not that much sturdier, either.
They're both handhelds like cell phones. They can both break easily, of course, if you drop them. I recommend buying NERF for either one (Though buying a case for DS prevents you from playing GH:OnTour, if you care)

As far as sound, neither one is all that great. PSP is good enough to listen music and movies to but it's still a handheld, not a portable DVD player.

PSP online isn't all that great either, but like I said it's a handheld.
The fact that you can surf online though is a plus considering DS does not have one. (They have DS Browser but it's discontinued, I think, due to its craptastickness and it's made by Nintendo!)

PSP Music somewhat annoys me; it does not let you have playlists (Good thing most of us probably have a damn MP3 or hell even an MP4 player - one that can also read .avi).
There are some 3rd party media player out there for DS but compare to PSP, it comes up real short.

Compare to the many things PSP can do vs DS, DS has two things PSP cannot do/handle: Touchscreen and Guitar Hero: On Tour

If you can overlook their flaws, then it all depends on your taste.
And also, there are a number of ways and things you can buy to which you can adjust to these flaws.
It just comes down to your pickiness.

I feel it's all apples and oranges to me.

Now,
None of the people above lies. PSP is great for media - Music, movies, game demos, photos, and homebrew.
It having a bigger screen and better speaker than DS helps you fulfill and satisfy enough of what you need when you're mobile.

I personally bought my PSP because I have a 4gb M2 memory card for my Sony Ericsson phone... I just recently bought an 8gb M2 (comes w/ an adapter) for about $50. Damn cheap for its size.
As far as games, Nintendo has great 1st party titles - no doubt; and DS has enough 3rd party support (Not to mention, enough RPG’s)

PSP, though, has amazing games like FF: Crisis Core (and upcoming Dissidia:FF) and God of War, IMO.
Which DS at this point could never do. Even Yu-Gi-Oh! DS and Warhammer DS are incomparable to the PSP versions.

I love my PSP because you can listen to music, store photos, plays demos and games, and watch movies - all in one!
And if you’re around a wi-fi hotspot, even surf the ‘net.
Not to mention, you can modify its themes and have skype and internet radio.

Comparing PSP to DS is unfair. PSP is a PS2 in your hand while DS is a N64 in your hand.