I disagree re 30 ROCK going downhill. The last episode before the strike was one of the funniest episodes of any TV show I have ever seen. The whole "Midnight Train" bit had me rolling on the floor like nobody's business.
I don't see 30 ROCK is a sitcom the way FRIENDS, THE NANNY, or WILL & GRACE were sitcoms. The single-camera approach as well as the self-contained episodes make it quite different in my book (plus the fact I think 30 ROCK manages to be hilarious, political, and incredibly smart in ways most sitcoms haven't been in a while).
ALIAS is probably one of the best spy shows to grace the screen and Sydney Bristow is my all-time favorite TV spy. JJ Abrams really outdid himself with the first few seasons (I started disliking the show when they introduced the "doubles"). Unfortunately at the end it got way too out of hand and sloppy-- partly 'cause of ABC did not fully support Abrams' approach. Either way the trio of Victor Garber, Jennifer Garner, and Ron Rifkin (and David Anders whenever he was on) always rose the material above whatever shortcomings it had, each scene with them was pure gold. Not to mention the show had awesome guest stars: Sonia Braga, Isabella Rossellini (who also had a great guest starring role in 30 ROCK), Lena Olin, Quentin Tarantino, Ethan Hawke, et al.
"Some people can thrive and bloom living life in a living room, that's perfect for some people of one hundred and five. But I at least gotta try, when I think of all the sights that I gotta see, all the places I gotta play, all the things that I gotta be at"