Although the odds of the Mountain winning are about even with both of them going down in the battle. There's the ever-popular Cleganebowl, which would pit the Mountain against his little brother the Hound - who is favored to win.
However, as Variety has noted, whoever takes the crown isn't the only thing on bettors' minds. Granted, that doesn't give any definitive answers, so Vegas is taking bets on all possible outcomes on who (if anyone) will sit on the Iron Throne. While fans the world over flood the internet with their own theories, all we do know is that the series will end more or less how George R.R. The final season of Game of Thrones might be a mere six episodes, but the hype for HBO's sword-and-sorcery epic has never been stronger.