Today I was sat in physics and instead of listening to the teacher ramble on about simple harmonic motion I found myself trying to think who the most powerful superheroes (and villians) are. For DC I reackon it could be Sodam Yat, the Green Lantern Daxamite who was up until recently bonded with Ion. For Marvel I guess it could either be The Sentry or The Hulk. Anyway my question is who do you think it is and why?