excuse me? who in kenshin has brute strength?
Gutts would make grind meats out of any kenshin charecters in a minute (except maybe Hiko Seijiro, which would take a while)... Kenshin passed out while fighting Shishio (about ten mintues after the fight started) while gutts figths on for entire days without sleep...
The battle will obviously come down to endurence, and gutts wins that field, so he win the entire shabang.