Heihachi vs Kazuya vs Paul

[Fantastische Hure]

Who wins?

If old Heihachi loses, you can make it prime Heihachi if it makes a difference.

 

[Captain Cadaver]

Paul is oneshot material here, since he's only equal to Tekken 1 Kazuya who's leagues weaker than even his base self in later instalments.

As for Heihachi VS Kazuya, they're both equal if assuming they're at their peak, so Kazuya likely wins with extreme-diff through his laser providing greater range.

 

[Fantastische Hure]

Tekken 2 Paul presumably defeated Heichachi to advance to the finals though.