>>8092932Optimus primes are usually well done. I have both 01 and 10 and both are solid figures that are fun to play with, so it comes down to personal preference for aesthetics.
01 has fun little features that 10 doesn't like a flip up wrist communicator with a sticker of a various character, an LED to light up the matrix in his chest, and a little button to make his faceplate move like he is talking. Oh, he also comes with a Megatron handgun.
MP-10 doesn't have diecast legs and wider range of motion so you can pose him more dramatically, as far as I know always comes with his trailer and Spike, and can store his gun in his backpack. He also has slightly more color variations if you care about that. I personally have the 7-11 exclusive.
Both have an axe weapon that can attach to his arm.