I think I was blocking it because I was disappointed when The Great Escapist didn't show up in the list of finalists. Because how can you not love an episode that gives us this?
(oh god sam let me hug you)
Not to mention the Scooby Doo villain and BAMF Kevin and "you're not supposed to call them Indians" and "we're the freaking Winchesters" and so. Much. More.
On the other hand, the winner does give us this.
And BAMF Sam dousing Abaddon with holy fire, and Crowley singing "Changes," and oh my goodness, so many good things. And you can't really complain about that. So I really can't complain that the most rewatchable episode of S8 is, as you guessed, Sacrifice!
Thanks everyone for voting. Maybe I'll manage to do another poll before the season premiere?