If I was old enough to frequent an arcade in 93 and came across the Samurai Shodown attract screen then I'd be there with the rest of you and select it as my pick. But I wasn't so as much as I admire it's simplicity and favour it over the second Shodown title (SS1=Fave) I'll go with Fatal Fury Special.
I recall picking it up a FFS cart for cheap when I first got into MVS and it's just a beautiful game. It feels chunky, heavy, the music punchy, the colours bold. Tung's stage on a misty mountain, Jubei's stage with the wooden boards, Mai's boat stage, Venice, so much detail. Every time I put it in to play it hands my ass back to me but it doesn't feel unfair in an AOF2 kind of way. It's the game that made me pay more attention to the craftmanship and progression of earlier SNK titles.