I voted for Hot Rod or Rodiumus Prime.

That's a good choice. Hot Rod was always cool.

Some of them not listed I'd like to see are: Sideswipe and Sunstreaker. Of course, they'd have to downgrade them from Lamborginis, which sort of sucks...but they'd be an interesting pair to tip the scales in the Autobots favor ('specially Sunny). Downside to this is that you can't have one or the other, they are a pair, so having them in a movie would eliminate a spot for another potential Autobot recruit. Then again, the twins were always amusing.

Also, it would be nice if the Autobots got some aerial help. Skyfire would be cool and a dynamic character, as he was once allied with the Decepticons at one point in time. Not to mention, he and Starscream have a history, which would make for a very awesome pairing off and potential sky bound asskicking. Downside to this is that Skyfire always got owned by Starscream.

Then again, they could have Superion show up and solve all the Autobot's sky power problems. It is rumored that the Decepticons will have Devastator in the next movie...so Superion would only be fair.

As for the Decepticons, I hope Barricade and Starscream will return. Maybe Starscream will come back with more of his jet buddies. Thundercracker or Skywarp would be sweet. I'd love to see Ravage too. And Soundwave--but I agree his transformation would be difficult to make believable. Of course, Megatron too...and I hope they'd give him a bigger part in it all.

Then again, I'd love to see Galvatron--but I think he'd be a little too intense for the movie verse. LOL ( http://www.youtube.com/watch?v=rDI3NbldjbE )