Probably Harry Potter because he knows lots of spells and if he casts it to Optimus Prime. Optimus Prime would definitely be defeated.
Optimus Prime.
optimus prime (weakest) super optimus prime power links optimus prime flight mode optimus prime fight mode optimus prime super powerlinks optimus prime omega optimus prime supream omega senenel optimus prime super omega optimus supream wing omega supream optimus prime super omega senenal optimus prime omega wing sentenell optimus prime super omega wing optimus prime super omega sentenell wing optimus prime optimus supream finle impact ultimtae optimus supream ultimtae optimus supream finle impact (strongest)
optimus prime snake stinks
Optimus Prime is the leader of the Autobots
optimus prime
Optimus prime for sure
i think optimus would cos he has all the guns
Optimus Prime is a Pertebilt 379
Optimus Prime
Optimus Prime does not have a girlfriend. Optimus Prime was originally Orion Pax, and Orion Pax did have a girlfriend named Elita-One. However, after the Autobots crashed the Arc into the Earth, all memories between Orion and Elita were wiped out.
Megatron intervenes the fight between Sentinel Prime and Optimus Prime, Sentinel Prime rips out Megatron's spine and head from his body. then Optimus excutes Sentinel
Optimus Prime and Megatrron are about equaly matched but Optimus has better guns. He being a prime is stronger.