I love the fact that the G700 is the first liquid cooled behemoth of a gaming system and I can overclock it even though it's already a monster PC. There's nothing that a gamer loves than smooth gameplay at ultra settings . That's why I'd get the Asus ROG G700.
Now I'd take the G752 for the mobile Vapor chamber thermal system and it's G-sync monitor, I say it again, There's nothing that a gamer loves than smooth gameplay at ultra settings.
Consoles don't stand a chance.