I think the saving grace of this episode (besides the pretty, which is the saving grace of EVERY episode) was that the girls didn't track one-on-one with the boys. Claire is Dean because after being involved with the Supernatural she sees it's pointless to try and have anything else, and Sam fought that realization body and soul until the collateral damage was too high-- but Alex isn't there yet. Claire is Sam because she understands being separated from the values around her-- but he wanted "safe" and she wants to hunt. Alex is Dean because she is willing to sacrifice, because she wants to live the life that people who love her want her to live.

*tangent: it's curious that Sam doesn't emphasize that more with others or with himself. That's what he said in the pilot: "not normal. Safe."

And Claire, you are more interesting every time we see you, but for the love of something holy, stop with the eyeliner and the bottle blond and the bad hair!!!