Anyone else thinks this is similiar with "Fist of the north star" ?

I personally think that Saitama is very much like Kenshiro, both defeating insanely strong enemies so easily. Like Saitama being "the most powerful hero" and Kenshiro's fighting style (Hokuto Shinken) being invincible.

It would be really interesting to know which one would win in a fight, though as anime i rate "One-Punch man" 10/10 and "Fist of the north star" 8.0/10
(FotNS might be higher if it weren't so old)