The Energon Pub

[E107_Theta]

There was an episode of the TV show kinda like this.

I'd probably pick Optimus. He's one of the few toys I have who could realize he's 7 inches tall and be able to take it like a man. Really, if Luke Skywalker didn't whine enough before...

As stated before, any Decepticons or other assorted bad guys are a pretty bad idea. I doubt your average 'con would take too kindly to being small, and would take out their aggressions on you, the house, and everything else. Soundwave would probably pretend to be your friend, then slit your throat while you sleep.

Even if they might not be lethal, they'd still be fairly destructive and try and wreak your house. That pretty much counts out Grimlock, too.

[Zombie Starscream]

Even if the 'cons are in a heavy duty cage?

[Greed]

I'd make MP Prime real and dress him up as different tiny critters from movies and what not. (Jawas, Ewoks, the monkeys from Wizard of Oz, Oompa Loompa, etc.)

[NightFall]

Starscream! Hell yeah!!! Fly around in him, terroise the supermarket. use null rays against loud music!

I'm so there, except for the loud music. It would be ok, at long as it's tastful...