I played both and prefer the SNES version. Not being biased, just thought it was better. That and I've never played a bad Capcom game.
I do fear for nintendo with both iwata's passing and the NX. Ninty seems to have completely given up on the Wii U and most of their first party games from now on seem to be amiibo focused, something I've not been suckered into. There's lots of rumors flying about and no confirmation on the OS and the hardware, so i'll reserve judgement until a proper press release on the console.