Board Thread:Theories and Speculation/@comment-25374145-20150312083658/@comment-25506982-20150312115849

Deidara.

In his fight with Gaara, the latter exhausted himself covering the entire village in sand to keep it from getting bombed. So he won the fight strategically, but that doesn't necessary mean that he was more powerful than his opponent (later we saw the same with Shikamaru & Hidan).

The Sasuke fight, he was driven to the point of killing himself in order to kill his opponent and that failed.

As for Hidan, like someone said, when you're immortal, of course you're going to be careless and not worry about guarding your body. If there was someone like that in real life, I'd guarantee you their body's going to be covered in scars and bruises. Hidan's weakness was also his strength because it made him more arrogant.