Mega Aerodactyl is a Rock & Flying type, and has a pretty similar design to Aerodactyl, just with a few more stones pointed out of the mouth and body basically. Mega Aerodactyl has the Tough Claws ability (I believe,) which is pretty good, and it got good enough stat buffs that this can put out some decent damage output physically, but like past couple, Mega Aerodactyl remains a bit frail, so can't take hits as great. Overall, I like Mega Aerodactyl, but when compared to the other 24 megas remaining, I just don't care for it quite as much, so it got ranked here.
Ranks:
48: Mega Audino
47: Mega Abomasnow
46: Mega Glalie
45: Mega Banette
44: Mega Camerupt
43: Mega Slowbro
42: Mega Garchomp
41: Mega Steelix
40: Mega Salamence
39: Mega Heracross
38: Mega Aggron
37: Mega Tyranitar
36: Mega Scizor
35: Mega Houndoom
34: Mega Mewtwo X
33: Mega Mewtwo Y
32: Mega Latias
31: Mega Latios
30: Mega Sableye
29: Mega Swampert
28: Mega Sharpedo
27: Mega Medicham
26: Mega Pidgeot
25: Mega Aerodactyl
Pokemon Left:
Mega Venusaur
Mega Charizard X
Mega Charizard Y
Mega Blastoise
Mega Alakazam
Mega Gengar
Mega Kangaskhan
Mega Pinsir
Mega Gyarados
Mega Ampharos
Mega Blaziken
Mega Gardevoir
Mega Mawile
Mega Manectric
Mega Absol
Mega Lucario
Mega Beedrill
Mega Sceptile
Mega Altaria
Mega Metagross
Mega Rayquaza
Mega Lopunny
Mega Gallade
Mega Diancie