So, pretty much every style can work...

[sanjuro_ronin]

https://www.youtube.com/watch?v=ZgFNrVg-bL0

They made a couple of mistakes as the karate was CLF I think and the Aikido ( according to some) was Kung Fu.

[Jimbo]

That 'karate' guy could have used CLF at the end, but his stance was total BS and looked more like a Kenpo guy trying to look like Kung Fu. No CLF person worth his salt would assume such a posture as a 'guard position'. If he had tried that against the wrong person, it would have been bad news for himself. Also possible that his last combo only resembled CLF by accident.

I've seen the 'Aikido' one before. IMO, it looks like it's possibly staged. But it looks more like Chinese police or military combatives to me.