The only film of his that I've ever found even mildly entertaining was The Rock. I have no memory of Bad Boys or Bad Boys II. I'm not even entirely sure I saw the 2nd one. Armageddon was a piece of ****. Transformers 1 was a toilet-clogging piece of ****.
Let me put it this way. I hate Devlin/Emmerich films, but there are some of them (e.g., The Patriot) that I can watch and laugh at (others I flat-out refuse to watch). This is because Devlin/Emmerich productions at least seem to be earnestly trying to tell a story, albeit terribly, and they take themselves seriously. Michael Bay, on the other hand, has nothing but contempt for his audience. I think he aggressively tries to make as stupid and incoherent a film with as many off-putting qualities as he can, but with big, loud visuals, and while he's doing it, he's saying to himself "And you ****ing cretins will STILL eat it up."
I think he intentionally tries to include elements that are simply disgusting, like cheesy racist stereotypes, crude "humor," and now, apparently, statutory rape jokes, too. He strikes me as a loathsome director (I can't speak to his attitudes as a human being, but I wouldn't be surprised if he was also a loathsome person in general), and I get the sense that he doesn't actually like his job, even. I think he likes making money, though, he's discovered a nearly sure-fire way to do it, and he will continue to do it until people finally get sick of his schtick or someone comes along and one-ups him.
In conclusion, **** Michael Bay.
