If you could watch it again for the first time...
What moment would you want to experience again first? I'll be basic and say "Postpartum". This might out me as an old man but when it aired I frequented a Shield message board that would have spoilers for upcoming episodes. I read spoilers, possibly put out there as disinformation by the writers (it's been suggested but not 100% confirmed), that the Salvadorans would kill Ronnie, Lem would escape to Mexico and Kavanaugh would arrest Shane for tax evasion. Imagine my surprise when I tune in to "Postpartum" and see what ACTUALLY happened. I was gobsmacked in the moment, and I'd love to see it again for the first time.
What about you? Obviously the question doesn't apply if this is your first watch.