Capcom's old games are good, but recently they've been in a slump. Third Strike is still one of the best fighters out there, just blow Mark of the Wolves in my opinion. And of course, Capcom's version of Street Fighter vs. King of Fighters was better than SNK's.
It's just that recently, SNK has been putting out Samurai Shodown Tenkaichi, KOFXI, and NeoGeo Battle Colisseum, while Capcom was made... Capcom Fighting Jam. We're all looking forward to SF4, though.