CRTemudriver on your pc. a Radeon card is 20 bucks at most, way better than a WiiThe killer feature for Wii compared to more modern alternatives imo is being able to run SNES games at native 224p on a CRT. I don't know of another more practical way to achieve this that doesn't come with a lot of money or hassle involved.
I have to say my experience with PSvita has been weak, one of the more unstable versions of RetroArch I had to enjoy and wipe several times over because it gets itself into a crash loop at launch for no real good reason.PC and PSVita