Couch Potato Chronicles: "Supernatural" and "Buffy" in Season 6

Last week my guilty pleasure of a TV show, "Supernatural," finished its season with a bang! La Parisienne and I had a fabulous time watching it together.  (Come on: Castiel + Balthazar + Crowley + Bobby = automatic awesome, along with very quotable quips along the way.)  Besides, the season-ending cliffhanger was really good.  I didn't see it coming, for one thing -- I thought something else was going to go down.  Well played, Sera Gamble.  I was going to write up a full episode review, but then I found an interesting little review comparing "Supernatural" season 6 with "Buffy" season 6.  Do read!  Spoilers.