4 buttons all the way. 6 buttons are retarded and useless. SNK does have strengths for specials and you can always get the equivalent of a medium attack with direction+light attack from most characters anyway. there's just no point in 6 buttons. hard attacks should be used for slower but a bit more damaging specials and light attacks for faster but less damaging specials. there's no need for a balance between the two because there's just not enough screen space to take full advantage of it, and you can play mind games with 4 buttons just fine anyway. yes Demitri is a giant bucket of crap in SvC but that's just a design flaw and shouldn't be attributed to the Neo Geo's 4 button scheme. And if you consider the fact that some capcom games use 3xpunch or 3xkick for some moves, it makes it even more overkill. The maximum simultaneous button press you should ever use are 2 buttons and that's for SDMs/HSDMs/LDMs. I've always hated the 6 button scheme and 4 buttons work out great for me.