OK, rather than asking what other people though, you made a list... well, judging by your choice of viewing, you know a lot more about movies than me, so fair enough. My idea of a powerful scene is where Mean Machine Angel uses his power-robo-arm to smach through someone's face, or where a ninja uses his ultra-ninja-power to jump over a 50-foot wall and land on someone's head.
I'm... I'm not smart...