Sure beat the pants off of the second one. Coherent story, no badly repeated CGI(like the Optimus scene after he gets up), and no robots appearing for one scene and then disappearing(I'm lookin at you Jolt). I loved the second movie, but I think it really should have been delayed until the Winter to allow for rewrites. Thank you writer's strike. :p
I haven't seen Super 8, but I enjoyed Green Lantern. Can't say I enjoyed it as much as Transformers 3, but it was a good movie.
MASSIVE SPOILERS BELOW!
I was a bit upset that they killed Ironhide, but I realize why they did. If it had been Optimus again, people would've walked out of the theater. If it had been Bumblebee, then Sam's connection to the Autobots would be weakened and he'd pretty much be rendered useless. And if it had been Sideswipe or Mirage, there would have been no emotional connection since they were fairly new and only Sideswipe was given any real character. So, sadly, Ironhide was the only real choice to die to make the audience give a damn about Sentinel's betrayal. And Sentinel's betrayal surprised me at first, but in retrospect, I should have seen it coming. I was expecting Nimoy to give Sentinel a more of a Spock-like voice, yet it reminded me more of his depiction of Galvatron.