When it comes to the Transformers franchise and pop culture as a whole, many fans agree that Optimus Prime is one of the greatest fictional leaders of all time. Since 1984, Optimus Prime has had many different opponents, from evenly-matched foes like Megatron to multiversal threats like Unicron. Whether Optimus is using his physical strength or tactical genius, he is a character who is always better to fight alongside than against.