@silentchief: I'm not really in the mood for arguing, specially not when it comes to fighting games which I've been playing them all my life ... I'm just going to say that SF flopped hard after SFII and it only recovered with SFIV which it was the last chance for the franchise. That's not really an opinion but how it went. Of course, KOF also flopped with XI and XII and it recovered with XIII, but yeah ... The times when SNK was playing catching up are really far behind ... Like mid 90s probably, and again ... Not an opinion.
When was KOF ever bigger then SF? Even in the dark days of SF3 it was still a larger franchise and SFV despite its rough beginning is still far ahead of any of SNK's recent fighters. I've been playing fighting games since the early 90's it's one of my favorite genres. You can have your opinion and that's fine but criticality and commercially KOF has never been close to SF.