Alternatively there was:
I'm better at having more canon parents than you.
If you're so great and powerful, why do you live in a wooden cart?
I'm so blue I can dabadee dabadie all over your blueness any time any day.
I made a sonic rainboom; you sort of need wings for that.
I'm the show creator's favourite; I don't have to prove anything to an afterthought of her creation.
Do u even lift froggit?
I'm the only one in the kingdom that can run beyond Ponyville's outskirts faster and never come back... oh dear, looks like you've won.
I'm less arrogant than you, which is like saying a porkchop with a leaf of parsley on top is more vegetarian than beef.
I once smashed down a entire room in Princess Celestia's palace and got away Scot-free.
I once made Fluttershy cry and lived to tell about it
Everything was drawn by me this time around.