"I'm not trying to compare, my point was that Superman doesn't drain as easily as he use to"
He shouldnt either.
Thor however does have the power to do so. Same with Surfer. And on a higher level than MJ.
"Superman wasn't going all out though and if I remeber from that crossover, Heat Vision was hurting Thor."
He wasent going all out 😄 ?
His universe at stake and fighting someone who made him bleed the first time?
That he had MM`s help to take on the said foe?
That has strenght to go toe to toe with him and a uber magical weapon to boot?
That had him on the ropes before resorting to HV?
That was shot at close range?
And saying in the end barely standing out he was his thoughest foe and not having the strenght to fight back against the Avengers assault?
Not going out? Where was it stated huh. haha Hilarious.
"Heat Vision was hurting Thor"
He wasent down or knocked out. He was fighting.
And unless his breath attack changed to being more powerful than his HV its not happening.