Round 1: In character
Round 2: Bloodlusted
This is Buu saga Tien at hes best
Fight starts 6 meters away
Winner by opponents death
Fight Location: At the peak of Mount Everest
Tien should take this easy , Kid goku got struck by ligting again and again ,yet he was standing without much damage...
Even roshi's "thunder shock surprise" didn't knock him out, At that time Tien was already much more stronger and tougher than Goku.
So i would say this fight goes to Tien for sure.