I’ll start off by listing mine:
The T-800, Terminator 2: “I know now why you cry, but it’s something that I can never do.” Gets me every damn time.
ADA, Zone of the Enders: I think I’m the only one who played this game more than the MGS2 demo that came with it. I will never not laugh at the exchange of “You may speak like a human, but you’re still a heartless computer, aren’t you?” “That is correct. What is the problem?”
Codsworth, Fallout 4: He survives the nuclear holocaust despite not having a bunker and waits 200 years for you to come back. When you look at what changes his relationship with you, he mostly just wants you to be nice to people. I never swapped him out as my companion.
B.O.Y.D., Ducktales 2017: He’s adorable. 'nuff said.
The fact that 3PO kvetches about everything is very funny robot behavior.
Screams of relief and joy from the trash compactor
“LISTEN TO THEM ARTOO, THEY’RE DYING! CURSE MY METAL BODY I WAS NOT FAST ENOUGH!”
also my head-canon that R2D2 curses in every beep of dialog.
I think that’s part of the concept for the astromech in Rebels, Chopper.