WaterMasterTrainer
Member
Uh except Brock and Misty returned in SM recently for cameos, and both had Megas. And it was Brock who actually won (and pretty convincingly), with his Mega Steelix tanking a Z Move from Kiawe's Turtonator, and then beating it. If anything, Misty's Mega Gyarados lost quite easily to Pikachu, so that might be the weak link.
Anyway regardless, I think the duo of Mega Steelix and Mega Gyarados should beat Blaziken and Dragonite.
Brock's Steelix probably only won due to the fact Brock is undoubtedly more experienced than Kiawe. May's Blaziken was able to match Ash's Sceptile and Iris is the best female battler with a Dragonite that was able to tank Blizzards and Ice Beams which he has a 4x time weakness to. I'm sorry but Misty and Brock couldn't touch either of them.