Re: Transformers 4 is going to be AWESOME.
I liked the first Transformers film and have watched it ~4 times.
I enjoyed the second Transformers when I saw it in the theatres, and I recall that my favourite part was Jetfire's character arc. I tried to rematch it recently but the first 20 minutes were too boring. It's not as bad as Thor 2 / Green Lantern / Battle LA, but it was bad imo.
Third movie was ok. It set up some truly epic story with its opening sequence, but failed to live up to that. It followed it up with the parents wearing green pants, and then Derek Shepherd from Grey's Anatomy became the leading human representative of the Decepticons on Earth. Megatron was a joke the entire movie, I thought they'd power him up, but no.
The trailers for the fourth movie look awesome, but I'm not keeping my hopes up.