After re-watching Revenge of the Fallen, I have to say it's not as bad as thought but not good either. As far as acting and dialogue goes, some scenes, such as Sam's room-mate tasing himself or when he is screaming for God to let him live are quite funny and enjoyable to watch (in terms of actual comedy, Ramón RodrÃguez was the right actor to hire for this film, I'll congratulate them heavily on that choice) ,other scenes such as Sam's parents (any, and I mean ANY scene) are insufferable to go through. Sam's relationship, I personally didn't feel it, I'm not sure if it was because of the acting or their personalities in general, but it just felt forced. the action scenes are very enjoyable, a lot criticize the fight scenes due to them not being able to tell who is fighting who, but it's actually clear who is the bad guy and who is the good guy in those moments. One of the things I disliked in this movie was The Fallen and the Matrix of leadership, I feel like both came out of nowhere as well as the two twin autobots, not only are they racist portrayal, but are simply annoying. the biggest let down was Sam's death, the reason being is that Sam should have been dead SOOOO many times in the movies, like seriously, he shouldn't have made it, unscratched mind you, as far as he did in the film. Optimus Prime was far more violent in this movie and I like it, because it showed that although he is wise and caring, he also knows that there are times where if he doesn't use violence, it will end worse than how it started.
All in all, I'd say 4.5 to 5/10