I thought "Sacrifice" was a pretty good episode. Not terrible, but not great either. For the most part it seemed built around the notion that they had to have a good way to kill off Billy. Still, there were enjoyable aspects. D. rejecting Billy's proposal was an interesting touch, so that now that Billy is dead D. and Apollo can go through some guilt, as their relationship progresses.
It was also fun to see Ellen Tigh again. And Dana Delany's performance worked very well. Starbuck's friendly fire on Apollo was good too. It's a nice piece of reality, since friendly fire happens all the time. Katee nicely played that out, conveying guilt and regret. (Last week she wanted to frak Lee, this week she shoots him.)
Edward Olmos as always delivered. Ron Moore in his podcast noted that Eddie improvised the line at the end of act 3, "Cut the wire," and that they don't even know what it means, but they liked it. I like it too. Knowing that he improvised it, makes it rather funny as well.
Sometime Edward James Olmos should be part of Ron's podcast, or do an actors commentary track for the future DVD release of some BSG episodes. I'm sure his insights are very interesting.
Also in Ron's podcast, he said that this was not one of his favorite episodes, but not as low on his list as Black Market. Well, it's certainly better than Black Market. Though, I'm not sure if I can explain why I like it. Maybe it was seeing Kara in civies. And it's nice to see that off-duty Marines wear Hawaiian shirts, just like if they were on leave from Pearl Harbor, or something.
So, "Sacrifice" -- a strangely entertaining episode.