The movies weren't... awful. The problem is they also weren't Transformers per se. They were new stories about teenage drama with special guests: giant robots named after the Transformers. It would have been perfect as a Sci-Fi channel knock-off of a Transformers movie. Both were perfectly watchable C-class movies. The problems, and my main animosity toward Michael Bay, is that in the first movie he didn't bother with any Transformers lore (which wasn't the worst idea he had) and in the second he desperately tried to please the fanboys (good luck with that) and over-saturated it in lore. Its like the first movie he tried to make a cake using one particular ingredient that isn't normally in cake, and the second movie he tried to make everything those same ingredients are used for into a single dish (seriously, giant truck nuts? even my 5 year old cousins thought that was unnecessary). Hopefully they've all learned their lessons and can strike a balance somewhere in the middle, thereby making a good movie.
All of those problems lie with the writers, so I guess I can't really fault Bay for that...
What I want to know is: Where the hell is Marvel Comics during all of this? Marvel should still own the Transformers comic series, and therefore have the best idea of the characters and stories. They also have the most experience on telling a comic-book style story (some good, and some bad, but they've learned a lot more lessons that Bay needs). Come on, Mr. Lee! Get in the game!
Also... (puts on flame suit) Megan Fox and Shia LeBouf SUCK! I haven't seen a movie with one of them in it that hasn't sucked royally, let alone broken into a B- or A-class movie. Seriously... I don't care how pretty you think they are, Bay. And I really don't care how many stupid preteens the thought of boobs or LeBouf will bring in. They have been ruining your movies worse than most of the writing.