Peter Dinklage was fine. I never minded his voice. I definitely think Nolan North is better for the game going forward though. He'll actually be available to record any lines they may need in the future. Destiny is going to be releasing new content fairly often so they need someone that can do this. House of Wolves and The Dark Below didn't even so much as mention the ghost, and he's supposed to be important, so it was a needed change in order to make sure the ghost stays relevant.