Lockdown sounds a lot like Optimus, strangely enough. No real catchy phrases except for "Who's gonna stop me? You? You couldn't stop an oil leak."

Soundwave is the real star of the show. I've been waiting for him with the most gusto. I just love his machinated voice. Funniest soundbyte... when triggering via the bumper...
"[screeching noise followed by a loud crash then...] OW!"