Mewtwo is a pretty tough pokemon! He’s easily one of the strongest pokemon ever! Of course Broly is quite possibly a Solar System Buster! One good blast from Broly could break Mewtwo’s barrier and then some! Mewtwo drops down the ranks with this loss, but he’ll be back. Broly wins.
DReager1.com 
mewtwo has mindcontrol…. you fail. broly loses
The Mindcontrol’s good, but I’m not sure how effective it’ll be against Broly. He’s not exactly the sanest character out there. Plus with his speed Mewtwo wouldn’t get to use it
Broly is not a solar system buster, he’s a galaxy buster. He destroys the south galaxy in the beginning of the film.
in the japanese version, Goku said he destroyed the galaxy as well.
so you might want to consider that in future posts.
True, Broly is extremely powerful and he took down the Galaxy with ease. He’s definitely one of the stronger villains out there!