Will power of Hal Jordan.

I don't know too much about dc comics much less hal jordan, but i do know that his strength as a green lantern comes from his comparatively remarkable will.

I've been seeing a bunch of posts about his fight against batman and superman where the latter somehow fuse as a necessity because GL has more willpower than them COMBINED, which i honestly struggle to believe

I know about his stint as paralax in the 90's, wiping out the GL corp, and recreating his city, but i would like to know just how much more will power he has, especially over characters like batman and superman.