I like both.
I've played both original SNK sprited games, and Capcom sprited games in the past.
For Mugen I play both, usually specifically with one type of sprite and gameplay.
I think SNK is more realistic, and Capcom more cartoony. Capcom sprites fits very well with other styles however, like Rage of the Dragon, Power Instinct, etc. A lot of original content is created with more Capcom in mind.
I prefer both, to be perfectly honest, but I do find myself playing more with Capcom, so I guess that will be my answer this time.
Jupp. That's cool alright.