PSP: Third party support.
Vita: Everything else.
Genuinely. Vita is more comfortable, better screen, dual analogue is a huge improvement, the game cards are miles better than UMD's etc. etc.
Basically, it's better hardware and design by absolutely miles.
But none of that means squat if it isn't getting the games, and at the moment, it just isn't getting the games. Don't get me wrong, because I'm definitely not saying "it has no games", but compared to the PSP the library is lacking.
Then again, I'm comparing it to an 8-year PSP library, so I guess we'll have to see. The prospects seems bleaker though. Some big IP's were more than happy to throw their weight behind the PSP; while there's still time for this to happen on Vita, I'd wager there's going to be noticeably fewer of them.
Doesn't help that Sony is slacking with IP's, though. It took time to get some of the big guns out for PSP as well (hi2u Gran Turismo) but there were third party efforts to fill in the gaps on PSP. Less so on Vita. Sort it out, Sony. GoW and GT stat.







