As per my new voting, I'm giving this episode a 9. I don't think it was quite as good as last week's, personally. Probably cause there wasn't any Claire. The other major reason this doesn't quite reach a ten is the conversation between Richard and Jack (although I liked it to some extent) seemed out of character for both Alpert and Shepherd. We got an answer out of the conversation, but it still felt a little forced, and I didn't like suicidal Alpert at all. Also, after spending months on the island, they get so easily disoriented that they don't know they're in the Territoire Fonce until they reach the Black Rock? Seems a little weird.
On the plus side, Jack was actually acting. I mean, he actually did a decent job. I have hope for the end of the series now, when (if my theory is correct) Jack assumes the role of Jacob, although I still predict he's going to cry a few more times this season. The side-flash was excellent and tied into Locke's side-flash... which is one of the first tie-ins we've had that show that everyone's alternate reality is in the same timeline, not counting Episode 3. Ben's lines in the side-flash were perfect, and he had a chance to do good in both the X and island timelines, choosing (presumably) the right choice in both. Excellent character development for Ben and Inara, telling us some of why she's actually there (which I confess, I was a bit fuzzy on).
The Widmore sub thing was something I was NOT expecting in the least. I didn't think Widmore and Jacob were on the same side, and Jacob stated that someone was coming to the island, making me think that Jacob was bringing Widmore. It's going to add a new dynamic, hopefully not a Keamy-like dynamic.