Seemed like he was trying to avoid just taking him down. Big guy got hands on him a couple of times why not take him down? It'd be game over with someone weighing 2-2.5x as much as you on the ground.When your that big its hard to maneuver and sustain any kind of attack against someone so fleet footed. You can tell the big guy was getting frustrated, perhaps it would have been different if it was an all out fight with no limitations but he could very well be bested by McGregor.
Everyone currently in the books is dead but our book 7 protag, a whitewalker teenage girl with a heart of gold, takes the iron throne
Well, to be fair, one is a fighter and one isn't. I think McGregor would win too, but one misstep would probably be fatal.In a fight I'd put money on McGregor over the Mountain.