None of them are "great". But Bautista puts in the most effort with trying various roles and actually "acting", and improving every time he tries a new role. So he gets the nod for actually taking the craft seriously, even if he's not particular great at it yet.
Cena is likable enough and he plays his character well. But he doesn't stray into trying to seriously act, he just takes fun goofy roles for the most part and that's fine. But I haven't seen him challenge himself like Bautista does.
And the Rock is....just "The Rock". He has no characters. In any movie it's just "The Rock climbing a skyscraper", "The Rock get's lost in a Jumanji game", "The Rock cosplays as Buford Pusser", etc... etc...
