Just what the title says, from all of the Transformers media available what is your favorite transformation sequence? I have a couple, one would be the RID Omega Prime merge sequence. Actually, all of the animations on that show, they usually are so epic that it takes them five minutes to transform. Unicron from TF:TM was pretty impressive. The Devastator merge sequence from Revenge of the Fallen was pretty impressive on the big screen as well as that first five minute Optimus Prime transformation from the 2007 movie.