I loved Friends, too. It was the only show that I would go out of my way to try and remember to watch. (Although I often forgot, including the finale!I bought the video, so that's all good now, though! LOL)
I'll try to watch "Joey" when it comes out. I'm not holding out a lot of hope that it'll be anywhere as good as the original...but there are the occassional winner-sequels that make everyone hope it'll work again. (Such as Cheers/Frazier)
So, Friends is definitely my all-time favorite.
For some others, I catch on rare occassions when I happen to not have anything to do at the same time they are on:
CSI: Vegas
Jeff Corwin
Trading Spaces
Clean Sweep
Everybody Loves Raymond
Still Standing
And (a big secret!!!) I really enjoy People's Court when I happen to catch it. Sssshhhhhhh!