but videogame monsters don't work in FMs cause it's all based on the controller.
They actually can and do work, just assume it's AI. If you can't do that use a professional gamer (I even proposed using a system to help with this and something would have been done if anyone even bothered posting in the topic). With Baragon's move set (as well as those of other Atari kaiju) they could clobber anything short of Godzilla 84.
Anyway I'm going with Baragon, he's got superior speed, intelligence, and to a small extent strength.