The two top candidates are as follows:
1 - Garou: Mark Of The Wolves
It appears as if the graphics were about as advanced as that of Third Strike. That alone says something. Also, the same way that 3s is 10 years after Street Fighter 2, MOTW is 10 years after Fatal Fury 2. It is also the “evolution of the series”; by that I mean that there are few returning characters, and a lot of new characters. As you know, in 3s there are only 4 returning characters, and the only character returning in MOTW is Terry Bogard. It seems rather likely that SNK made this game as the answer to 3s. (Or was 3s Capcom’s answer to this? Dunno which one was made first) Also, the same way that 3s has parrying, MOTW has the Just Defense system.
2 - Power Instinct Matrimelee
The same way 3s has Ryu/Ken/Akuma(/Sean?) and Yang/Yun, Matrimelee has Tane/Ume (Kung-fu grannies ftw), Shintaro/Buntaro, etc. The graphics are also pretty hardcore in this game…not exactly 3s quality but it’s close. It seems that also, the same way 3s improved on the SFII system, Matrimelee improved on the KOF system. Another thing, the same way Gill is the superior sibling of Urien, Sissy is the superior sibling of Clara. I’m pretty sure SNK made this after Capcom made 3s, so if Garou isn’t the answer to it, this is.