BW MEgs for sure...and like decepticon said "size matters" well BW megs is so much smaller, he would just go into scorps head, take control and rule it all! mmwwhahahaahah!

Couldn't Megatron be the Headmaster for Scorponok?

thats what i was leaning towards :P

yup i gotta go with bw megatron, if it came down to a fight, he's taking over scorponok, i mean that whatever he was called that controlled scorp wouldn't have much of a chance against him, and once he took over scorp he'd mop the floor w/ everybody else, and then take over cybertron again.

I'm glad to see I'm not the only one to pick BW Megs. I like Energon Megs as far as power and brutality. But on Beast Machines Megs was practically a god. There was nothing he didn't know or couldn't controll even without a body. I wish that show would have been on cartoon network instead of Fox Kids. The last episode was intense but if they weren't censored who knows how much better it could have been.

Cartoon: Megatron. He easily has the highest autobot kill count

 

Comics: Shockwave. Kicked everyone's asses, both Decepticon and Autobot

The Masterforce Destron leader was Devil Z(mister glowy sphere thing), he changed his name to Devil Zarak after he possesed Black Zarak. After he died Overload tooke over for a short time till Dezarus

 

You also forgot Dark Nova(Unicron-esq guy who revieved Megatron) and then Super Megatron and Ultra Megatron, also Dark and Megs combined form Star Giant.

Starscream!

I say Beast Wars Megatron. He came back to Cybertron and single handedly erradicated all of the Transformers minus Nightscream and essentially became Cybertron itself. Maybe not completely single handedly but he had no real help besides the drones that he controlled. He was very smart and always had a hell of a back up plan. If Primus, the Oracle, whoever didn't figure a way for Primal and crew to evolve, Megatron would be the next Unicron after he figured a way to make Cyberton transform into his new body.

Tell that to Cryotek.

 

"The ingenious malfactor behind the theft of the legendary Golden Disc and was one of Megatron's earliest mentors, Cryotek was eventally betrayed by his former pupil as Megatron fled Cybertron"

 

"Cryotek was sent into temporary stasis lock, allowing his research and development operationd to fall into Megatron's Waiting hands.

 

From Wreckers Number 2 Directors cut.

BWII Galvatron! He kicked major chromium in his drill mode and dragon mode, and perpetually kept a grin on his face. I liked that grin.... *drools*

Galvatron. madness plus power mean others are doomed a painful death.