cmon lets go ppl!!!
@JThree47605: I don't know about that, you may be underestimating Erza's full strength. During the battle of Edolas, when her best attack collided with Erza Knightwalker's, it destroyed a small island, and that was pre-time skip. Now she would be even stronger. If speed was equalized I could honestly see it going either way, don't forget that Erza is a far more versatile fighter as well.
@Jinbeifan1: It proves a fair bit actually, that an island was nearly completely wiped out as a side effect of their attacks. To be honest that's more than Zoro has ever shown. Yes it was their best attacks but it shows what Erza is capable of going at full power.