God Tier:
>Mega Alakazam
>Mega Medicham
>Mega Banette
>Mega Aggron

p good Tier:
>Mega Charizard Y
>Mega Blastoise
>Mega Kangaskhan
>Mega Mewtwo Y
>Mega Scizor
>Mega Blaziken
>Mega Mawile
>Mega Garchomp
>Mega Obamasnow

Eh, I Guess it Kind Of Grew On Me Tier:
>Mega Gengar
>Mega Ampharos
>Mega Harrycrosser
>Mega Gyarados

Gets Wings Outta Nowhere Tier:
>Mega Absol

Totally Forgettable Tier:
>Mega Venusaur
>Mega Charizard X
>Fite Mew
>Mega Gardevoir
>Mega Ampharos

Just Gets Appendage-ier (Append-edgier) Tier OR Shit Tier:
>Mega Pinsir
>Mega Aerodactly
>Mega Houndoom
>Mega Tyranitar

How Does It Even Move? Tier:
>Mega Manectric