No Jesus plot armor for Erza
Defaults are on
Location: iHop parking lot
Who wins and why?
How does Erza even keep up with him? He'much faster than her. Azuma was not stronger than Hidan either. His explosions didn't even cause environmental damage nor did it kill Erza.
Why do you say that?
Azuma is stronger though. Quite stronger. I tell you this. He and Gaara have similarities that when in their native environment they become quite stronger.
Azuma destroyed a ship before he fought do you not recall this? He causes explosion via fruit of the trees. He ripped Tenrou Tree over and focused the island's magical power twice into Erza. She survived the first one because her durability is monstrous, 2nd one she lived because the island somehow protected her. He can easily bind Hidan and blow his body up eventually like Shikamaru did with explosive tags.
Erza is also a superior kenjutsu user by feats.