Bastida is quicker and I think has better stuff offensively. He's strong enough to hang with strong heavies without getting thrown around, and quick enough to get some points either on offense or defense. Kerk is a good HWT, and it's basically his turn to be HWT champ, but he's never wrestled Bastida before. I don't think Bastida has the power to pin Kerk or bully him around out there, but I think it's very possible he gets an easy go around for 3 points or comes out on top in a scramble. Kerkvliet has always looked a bit clumsy to me when compared to the more nimble guys like Davison. But he is coached by Cael and is a tank with pretty good basic technique. It's going to be awesome to watch.
That's all assuming Bastida and Kerk make it to the finals, obviously. Maybe they'll be wrestling in the consolation finals