By far, Friends wins all time fav, hands down. I can quote the show backwards and forwards, and give you a Friends reference for anything in life. Don't believe me? Try me.
I am a fan of a couple other shows as well, and if you notice, all are ensemble casts...up next, I have Studio 60 on the Sunset Strip. If you didn't see this gem, don't worry, apparently not many folks did. HOWEVER...it is some of the best writing, acting etc that never made it past a first season. Aaron Sorkin is an amazing writer, otherwise the rest of the world wouldn't have loved The West Wing. Coincidence that Matthew Perry (oh how I love how he makes me laugh...) is in Friends AND this show? Maybe. More like happy chance? Much more likely. I have to admit, other shows ranked above Studio for a while...but thank you to the wonderfulness that is Netflix, and a killer Black Friday sale on amazon.com...it's been moved up to 2nd.
After Studio 60, I have Law & Order, SVU. I have had this weird crush on Elliott Stabler (played by Christopher Meloni) for many years...and the fact that SVU is the longest running L&O spinoff, is just more and more eye candy for little old me.
Okay, last one...picture wise...I promise. I recently got turned on to the show NCIS, thank you to a USA network marathon about two years ago (maybe a little more). Ever since then, it's a DVR staple that is much like a Friends or SVU episode, if I see one on, I automatically stop to watch. Oh, and Mark Harmon, Michael Weatherly and Sean McMurry? Each hot in their own special way...
There are a few new additions, but I'd say this covers the top 4 for now...what about you? What are your favs??