In your opinion, what was Peter Cullen's best performance as Optimus Prime? Personally, I think he really shined in Dark of the Moon. He put so much emotion into it. I could tell when he was angry, sad, shocked, etc. He was also great in the other movies. G1 was alright. However, as much as I love Prime (the show), I will admit that Optimus does sound boring and emotionless most of the time. Anyway, what do you think was Peter Cullen's best performance?