Surfer might be as powerful as Thor, but he lacks the vavoom of Thor's big attacks. Things like the hammer return, and the outer space charged hit. He could hurt both of them a lot, but as far as taking them out? Doubtful.
He definitely has the capabilities to give them a good fight though, but he should lose pretty much every time.
This is ignoring weird shit though... don't really want to get into that.
Thing and Nul is seriously being underated. You have a high Herald and a trans level being and people are pitting them against Mid Heralds and high Heralds. Really?
Surfer wins 10/10. Singularity in both of them should do the trick. Hell IW almost killed Worthy Thing by crushing his lungs with a force bubble. I'd imagine a black hole in his chest would phuck him up worst than that.
__________________
..even the outer hells are indifferent matters for they bow only to potent and archaic Nodens.
If he fought how he did in FI he would get raped pretty bad. For whatever reason he decided to rush Attuma from behind instead of blasting the crap out of him. So via that fighting style, he gets mangled.
If he fights how he should, he'd do well. The worthy can fly to but Surfer's the most mobile and he's packing a lot of power.
We're talking about a guy with planetary level TP, matter manip, and energy output (he's actually busted planets). Now throw in his more exotic abilities like time travel (forward and backward), trapping people via board, binding their souls, creating black holes, etc...
HTF does he lose this barring PIS/CIS?
__________________
..even the outer hells are indifferent matters for they bow only to potent and archaic Nodens.
Thor fought smart my friend. If Thor fought anywhere close to the way he fought Nul and Thing during that fight, he would more than likely stomp any Herald that comes his way.
Thor had a great showing against these two--in particular, his hammer did. Thor seemed about as tough and strong as normal, but the hammer was really kicking ass.
I suppose that if Surfer had a great showing he might win, but he typically loses. As does Thor.