I also loved Cate Blanchett's outfit.
I also liked Helen Mirrin's dress. Beautiful, sexy, but age appropriate (unlike Catherine Deneuve's arm-baring number).
I liked MOST of Nicole Kidman's dress, but that huge bow on the shoulder looked very odd from certain angles. I was surprised that all the post-show fashion critiques loved it.
I am also not a fan of Empire waist dresses, because they make everyone look pregnant or fat (the former isn't bad if you ARE actually pregnant, though), unless the torso part underneath the bust is a slim fit, so I did NOT like Jennifer Lopez' dress.
I saw a bit of Jodi Foster, and she looked good (based on the quick glance I got...I guess she wasn't a VIP at this year's ceremony, so nobody spent much time on her).
Kirsten Dunst's dress was horrible! Like a bad thrift-shop find. Can you say fashion victim?
ETA: I liked Jennifer Hudson's dress, BUT I didn't realize until later that she originally was wearing some kind of short (like it had shrunk) metallic silver leather jacket over it! By the time she got to Ryan Seacrest, the horrid jacket was gone, but it was too late to keep her off the 'worst dressed' list of the after-Oscars shows.