We'd probably have to judge in terms of decimal points since both could score 10's.
Oh wait, you said "boys," didn't you? That's not in my jurisdiction.
In that case I'll help judge any women that want to compete.
Ebil idea! If I could build him in time...I could be Jiraya Judging the women, and someone as Naruto could judge the girls in an out-of-con swimming suit competition. But if there's more girls than women there, then I'll just have to vote too with eyes wide shut.
And since there's only two competing, so far, it's going to be a tough race.