I loved Transformers, but I've said it since the first time I saw Optimus rendered...the designs were too complex. The benefit of blocky bodies is that you can tell what the hell is going on when both Autobots and Decepticons resort to kung-fu. I still think the movie was great, but the poor designs coupled with Bay's focus on demolition made the few times we see the Cybertronians fighting a blur of metal and energy blasts.
I just hope that in the sequel they flesh out the Cybertronians more.