What's the canonical list of "doesn't run in anything", anyway? We're already running several games Yabause doesn't touch, but of course SSF is the big knowledge-hoarding kahuna.
As far as SSF goes, I mainly check these games:
Doom, Die Hard Trilogy, Croc (only works in 1 version of SSF), Revolution X. Some of them work on other emulators. Astal works with SH2 cache enabled (only needed in the title screen). Baku Baku (PAL) seems to lock up in the ending in the last few versions. VF and VF Remix have errors in the SCU DSP - sometimes when you kick someone, he/she appears on the other side of the ring. NBA Live 98 has completely screwed up ingame graphics. Wrong priorities on the RBG0 playground and something that looks like screwed up palettes on the textures (but it's probably some other issue).
And I don't see how the SSF guy is "knowledge-hoarding". Other emulators don't perform worse because they are missing documentation, but because they don't even implement everything we HAVE documentation for.