People say this often, and I don't get it. Sanderson is a terrible writer and his works and themes are nothing like ASOIAF. His only merit he has is "finishes books quickly". He's not even a fan of the books, he says they're "too dark" for him. He's the worst possible choice!
But I don't want anyone to finish ASOIAF if George dies before it's over. It's his story and no one else can do it right. We did this already and everyone hated it!