I feel like the tekken 4 kazuya will forever be the greatest. I mean, that’s where they found the voice actor for kazuya, and basically started the story mode from there.
Smash Ultimate Kazuya and even SFXT Kazuya doesnt even come close to T6.0 Kazuya. 6.0 Vanilla Kazuya was on another level. Top 1 character maybe tied with Bob. Short lived arcade version that not many people played though so yea SFXT Kazuya is probably his strongest iteration that was a proper release.
Kazuya is a good example of don't fix if it ain't broken. Homie had the same damn outfit/design since the start lol. Also put some respect on SFxT Kazuya, dude was insane in that game. Plus those trailers were some of the best trailers for a cross over fighting game 🙌 SFxT was the truth especially after the 2013 update.
T2 Kazuya is the one and only GOAT for me, not just as a version of Kazuya but as a Tekken character in the whole franchise, with TTT Kazuya/Devil right after that and 8 being absolutely insane. For the rest I just love Kazuya in all of them.