I've been using the SN and G Classic editions of the SN30 Pro + with Mortal Kombat 11 and the new Samurai Shodown. If you're going to play fighting games, I'd suggest the G Classic edition, its d-pad is less hard on your thumb, it actually feels kind of slippery. Certain characters in Mortal Kombat 11 have combo strings that require you to slide your thumb rapidly from one button to another (ex: Liu Kang's X, Y, X, Y), if you just press them regularly, the string isn't going to come out, it's definitely much easier to do on the G Classic because X and Y are convex.
I did struggle with both d-pads when trying to perform super special moves consistently in the new Samurai Shodown, you have to be extremely precise with the inputs (
B + A) . The M30 still has the best d-pad and is the controller I'd recommend if you want to play fighters that have a lot of circle motion inputs like Samurai Shodown, The King Of Fighters and Guilty Gear.