Surprised I didn't see a thread for this already. Some of the kill scenes in this game are particularly awesome, and I'm thinking some of them are very contextual, as in they won't happen unless specific things are met. Partially to test that, and partially just to hear about badass kills others have gotten, let's name some of our favorite executions. I'll start with two...

On my first game, I finished off Admiral Havelock when he had his gun out. The execution had Corvo stabbing the admiral through his pistol arm, turning the gun around, and forcing him to shoot himself. Wicked.

On this high chaos playthrough I'm on now, I killed the Lord Regent with an adrenaline execution. Not sure if its because I used bloodthirsty, but Corvo turned him around, stabbed him down his shoulder to hold him in place, and broke his neck.

Wow , never seen those!

MISSION 5+6 SPOILERS

I tried the same thing with the Regent, but was stymied at the door. Turns out you can't carry someone through a zone boundary.

Next time I play through it, I'm going to try to chain possess him all the way out.

Just jump off the roof to the courtyard You can blink while carrying people. No need to enter the door.

Mine is the Lady Boyle execution. Where you grab her like you are going to dance with her (or kiss her) then- STAB!

There's a really brutal one you can get with Martin, where you stab him, force him to knees, and he tries to get up and take a swing at you, but then you chop his head off.
In glorious slow-motion.
The Lord Regent's probably comes a close second. I haven't done Havelock's yet (I've let him live so far in all my low chaos playthroughs).
I'm a bit disappointed I didn't get that Lady Boyle one though. That one sounds awesome. Especially if you land the promiscuous sister.

Wow, that Havelock one sounds awesome. I haven't actually had many executions, as I generally knock targets out and dump them in water or stab them as they are down or something.