No Prep Time
Setting Other World Tournament.
Based on shown feats, then Pikkon wins. Based on common sense Gohan wins with little difficulty, unless someone expects me to believe that FPSSJ Goku was stronger than SSJ2 Gohan. The whole arc was a filler arc anyway so I'll stick with common sense for now.
hmmm gohan barely beat cell, while pikkon took down cell, freeza, king cold, and the ginyu force. yes pikkon wins this
To be fair, Gohan was mopping the floor with Cell until he stepped in to save Vegeta from that attacky move.
I dunno. It ends in friendship?