"Argo" was definitely deserving of the Best Picture award. It was smart and thrilling and captured that time in the late 70's very well. It's not a classic, but then again there have been few true classics as of late.
"Zero Dark Thirty" ended up being another fine movie. I didn't know what to think of the movie when it came out, but the good reviews and Best Picture nomination made me want to rent it. I must say that I was very pleasantly surprised. If "Argo" hadn't won, I think this would have been a shoe in. The hunt for Bin Laden was comparable to any spy thriller that came out during the Cold War. It's just amazing all of the stuff that happened in the background over the past 10 years and that we were all alive and living through these monumental world events.
I'll also add a review of "Savages" which also arrived from Netflix. It got added to the queue last year because I saw it was directed by Oliver Stone. I usually like his stuff, so into the queue it went. This was another pleasant surprise. It had a definite "Breaking Bad" vibe as a couple of pot dealers in SoCal run afoul of a Mexican drug cartel. Throw in performances by John Travolta, Selma Hayek, and Bencio del Toro, with lots of gratuitous violence, and you have a very entertaining flick.