Closed Megas which one is the best sweeper? moveset

[Joshua69]

Trying to pick the best mega for my team. I want it to be a strong sweeper. Right now I have a gooey Goodra, Protean Greninja, and Aegislash. Please provide your thoughts.

 

[Lotad Is Beast]

medicham is great : nature : jolly, moveset: fake out, zen headbutt, high jump kick , ice punch

 

[Joshua69]

medicham is great : nature : jolly, moveset: fake out, zen headbutt, high jump kick , ice punch

what would the Evs be for it?

 

[Lotad Is Beast]

Max Attack Max speed rest in hp