Revenge of the Fallen was great!

Packed so much new and improved cannon into the Transformers. In comparison the first movie was nothing but a prequel for this epic story. Okay, some of the comedy and human interest parts were dis-jointed, not really as cool as they could have been... but Optimus Prime finally grew a pair.

This movie finally made sense of the power struggle between Autobots and Decepticons, it finally investigated the the power struggle between humans (americans) and Autobots. It had everything in epic quantities and I don't know if it will ever be topped.