Outside the last ten minutes with Sun/Jin and Kate/Claire having the 'Not Without My Baby!' moment. (as said above, probably the worst minutes the show ever filmed)

Alternate universe was pretty entertaining, and I think I love the Sawyer/Miles buddy cop show. LOL@the garden hose tripwire.

In 'reality' it for the first time this season having the survivors finally realize "Hey, maybe the Undead demon guy running around in Locke's body might be a bad thing. Let's NOT do what he says."

It's also interesting how it kinda looks like there is a good chance Sayiid didn't kill Desmond, which is good on one hand because the zombie Sayiid was getting played, but still kinda doesn't seem true to the character after his heel turn.