I never owned a PSP, but it did have three main Monster Hunter games, so that's a big point in its favour. I also like its design a lot better than the 3DS with its more normal sized buttons and comfortable shape. Its screen was also higher resolution despite releasing 7 years earlier.
3DS does have the advantage of Nintendo games, but the only one I ended up buying was Mario 3D Land, and while it was a good game, it wasn't up to the usual standard of 3D Mario. Resident Evil Revelations and Monster Hunter 4 were good as well to be fair.
I don't feel like I'm well versed enough with the PSP to cast a vote so I'll watch this one from the sidelines, but its already a much closer race than 3DS vs Vita.








