Slingshot: "You won't escape, Megatron! We won't stop fighting until you're finished! YOU HEAR!?"

Ultra Magnus: "You can't escape, Rodimus! I can track your gas fumes ANYWHERE!!!"

 

I think "Such heroic nonsense" has to be one of the best quotes to come out of Transformers in general.

 

Movie 2007

Optimus: It's you and me, Megatron.

Megatron: No it's just me!

♫"Damn it feels good to be a gangsta!"♫

 

"What's a warrior without weapons?"

"A warrior still."

 

RotF:
Megatron: Is the future of our race not worth a single human life?
Optimus: You'll never stop at one! I'll take you all on!

 

"Every galaxy I have travelled, all you species are the same: you all think you're the center of the universe... you have no idea."

 

"Will anyone else attempt to fill his shoes?" Escpecially with what preceeded that incident.

Angry Magnus is one of the best moments IMHO in the series.

 

My favorite has always been "I've got better things to do tonight than die."

 

"FOOL! Pain is my friend, allow me to introduce YOU to it!"

 

I think Transformers Cybertron had some epic one-liners as well. The one that stands out to me the most is Prime yelling out "I just wish you would shut up!" to Galvatron as he towed Metroplex's axe behind him, about to use it.

 

Oh boy I remembered another one from webworld: You want to scream? I will give you something to scream about!!!!!

I think this one is going tops over my previous one.

 

I know this is a lot, but here are some of my personal favorites:

"Thought this was a war, but considering they sent you, I guess it's just play time."
- Sideswipe, Transformers: Devastation

"Class dismissed."
- Ironhide, Transformers: Dark of the Moon

"Who would you be without me, Prime?"
"Time to find out."
- Megatron and Optimus Prime, Transformers: Dark of the Moon

"I am but a soldier, Megatron, and you are a prisoner of your own twisted delusions!"
- Optimus Prime, Transformers: Prime S2E21 "Alpha/Omega"

"No one controls Grimlock!"
- Grimlock, Transformers: Fall of Cybertron

"Starscream, you half-wit, I still function! A fact you shall regret when I choke the life out of you!"
- Megatron, Transformers: War for Cybertron

"Yes... YES! The Autobots' most powerful weapon, AND the key to the core of Cybertron ARE MINE! The universe shall hear my name and TREMBLE!"
- Megatron, Transformers: War for Cybertron

And I know these two really long, but I just had to include them:

"You're in a stasis web. It drains away the energy, but leaves the flesh alive. At its current setting, this will only take a few moments! Ehehehahaha! (turns down setting) But I find a slower pace makes the vital fluids taste so much better! Heheheheheh!"
"Woah, you are one space-happy spider. Cheetor, Maximize! (tries and fails to transform)"
"I'm afraid the web makes that impossible. Cat you are, and cat you stay, and when your energy's gone... I feeassst! Ehuhahahahahahaha! AHAHAHAHAHAHAHA!"
- Tarantulas and Cheetor, Beast Wars: Transformers S1E03 "The Web"

"Cybertron is the center of my universe. How is it not at the heart of yours?"
"Cybertron is about all life. Destruction to keep Cybertron on life support--there must be another way."
"Flesh isn't life. Servos, gyros and fuel--this is where life comes from! You're defending--bi-product--at best! I will restore Cybertron and retake the galaxy!"
"That ambition will be your end."
"Behold, Optimus. A new Cybertron is being born..."
"No. You are only destroying the Earth, not creating."
"You don't really believe that, do you?"
"It is the only thing I'm sure I believe. You must be stopped!"
"You're welcome to try!"
"It'll be my pleasure!"
- Optimus Prime and Megatron, Transformers: Devastation

 

'Oh... I regret... Everything!'

 

"...my sweet!"

 

"Autobots! Today we show them who we are, and why we are here!"

"You have no soul!"
"That is why I have no fear."

"I tried to gain favour from you. But nothing was ever good enough. No matter how many battles I fought, you always found fault. Then I saw how Optimus treated his men, and I realized he was a leader of integrity. Unlike you."

 

From each continuity (I've seen)
G1- Devastator; "PREPARE FOR EXTERMINATION."
Animated- Optimus Prime to Megatron; "My name is Optimus Prime!"
Prime- Dreadwing to a pleading Starscream; "YOUR SPARK WILL SUFFICE!"
Transformers(2008)- Megatron to Jazz; "No, I want TWO pieces!"
ROTF- Genericon 23483; "Yeeeaaaaaaagh..."
DOTM- Optimus to Sentinel; "You didn't betray Cybertron, you betrayed yourself."
AOE- Lockdown; "You see my face you've seen your death!"
IDW- Cyclonus during his duel with Star Saber; "I've never bought into the idea of Primal infallibility; I think sometimes, God gets it wrong. He lets the best of us get sick and die while degenerates like you go on forever. But I think Primus is smiling on me today, Star Saber. He's telling me to fix one of his mistakes."

 

This is a bit of an obscure one, but it's still kinda badass.

"How foolish to battle in the name of peace...how absurd. You were programmed for war, Optimus. Without it, you would be just another Autobot. You are exactly the same as Galvatron, only you claim your objective is for peace. How does engaging in war translate as peace?" - Sideways/Unicron, Armada

As badass as 'One shall Stand, one shall fall" or "This is the end of the road, Galvatron" is, I never recalled anyone actually went as far as calling Optimus freaking Prime out for his hypocrisy as Sideways did (In the cartoons, at least).

 

My friend's name was Megatron, and he had three questions! Three things he said you should demand to know of any powerful institution! Question one: In whose interests do you exercise your power? Question two: To whom are you - just let me finish - to whom are you accountable? And three - oof - and three! HOW CAN WE GET RID OF YOU?

i know they're just cribbed from tony benn, but they're even more amazing coming from a latchkey father figure - not even that, from someone you knew was going to stay on the path he started on and continue fighting the good fight, even when the person he heard the questions from became his mortal enemy. the fight against injustice starts with the small man and orion proves that. he's a hell of a cop without being excessive, but knows oppression when he sees it and isn't afraid to take the fight right to the ruling parties.

fighting a war with guns and macguffins is one thing, but the way orion challenges the system just gives me chills.

 

From War for Cybertron:

Skywarp: "Dumber than Skywarp?" I'll show you dumb...
Starscream: You always do...

 

Kup: “Devastator!”
Hot Rod: “I have nothing BUT contempt for this court”
Galvatron: “Coronation, Starscream? This is bad comedy.”