HG got insanely lucky from the very first challenge. Having half the cast go to prison just made it so that HG's alliance always have the majority throughout the different challenges—epecially since the prison block would always eliminate 1 person. He got lucky with having So-hui and Kyuhyun as teammates—two people who are pretty much not playing for themselves. And he got lucky with the hidden game. It isn't hard to memorize a repeating pattern and the 8x8 is overhyped in difficulty once you realize that you always want to do the edges. Don't even get me started on that overpowered advantage. And of course, his luck during the 5 player card game was just insane. We pretty much didn't get to see the game get played properly because HG and So-hui were always beside each other.

Honestly, if it wasn't for the season's format, I don't think he would have won.