Most of capcoms back catalogue doesn’t work on newer systems like xbox and playstations, and are made for extinct Dreamcast systems and arcades you’ll never find anymore.
So I’ll easily go for SF4 the next 10 years. It’s the only one I can actually play. Except for SF2HDR of course.
2.5d like TvC i’ll take over any sprite drawn game, but gameplay wise i prefer ST or A2. My perfect game would be ST with a few A2 features (or even characters).