I got it for PC. The Differences are noted below:
PC supports resolutions over 1920 X 1080 and 60 FPS.
PC also has MSAA 2x-16x, VSync, and Anisotropic Filtering.
The PC version is also fully localized and has no notable translations errors compared to the vita version which has a few translation errors here and there.
I'd recommend the PC version.
PS: My profile picture contains indirect spoilers to the second game.