im a big apocalypse fan. ive argued for him in fights where most people would write him off without a second thought. this is a fight he cant win. he could give the surfer some trouble, but hes not going to win. both of them can amp their strength to potentially limitless levels, apoc has the advantage in melee combat, but the surfer is too fast to get caught by him.
the surfer is out of apocalypse' league in ranged combat. he weilds the power cosmic, apocalypse doesnt. he can call upon enough power to shatter a planet and last i heard apocalypse still needs oxygen. neither of these two really excell skill wise as far as close combat goes, and the surfer should be able to amp his strength faster by drawing energy from anything and everything.
i cant see how apocalypse can win this. he has energy projection, but he cant match the surfer. hes strong, but the surfer is at least his equal. hes not really that fast, but the surfer is one of the fastest fliers around. hes durable, but the surfer should exceed him in that department too if he uses his powers defensively.
given prep apocalypse could be a serious danger, but even then i think the surfer would overcome him.
as far as the stalemating galactus i dont think its that impressive a feat. hes shown himself as someone whod choose withdrawal than get into a serious fight. hes galactus, he doesnt really have anything to prove, and fighting someone is just wasting energy. if he thinks the fight will cost him more than what he will get our of it he doesnt really seem to mind leaving it unfinished.