@Purple:
While probably true, I'd imagine that Garou continuously requesting for more power from that god entity helped out a bit. I also don't really recall Boros really taking on too much damage until he started using 100% of his power.
?
Did Garou ever requested any power from God thing?
And I agree with Sauza´s method. I´ve always considered Garou above Boros, even if not by a big margin.