This isn't the same as the sexiest female character, although there maybe some cross over. It's about your favourite female characters in sitcom. I'll go for a top 3.
Barbara & Margot - The Good Life.
I couldn't separate these two. They were wonderful characters, Margot, the controlling snob and Barbara, the anti-female with fantastic wit. Females often seem to be background characters and when they do lead, they aren't always well written. These two are incredibly well written and acted and never appear inferior, Margot just wouldn't let that happen! They are funny too, which is important.
Isa - Still Game.
I love Isa, she rarely fails to make me laugh. She's a fantastic background character, one of my favourites and she has great chemistry with the others, especially Winston and Navid. She'll occasionally come out with something crude and uncharacteristic that makes me laugh.
Nana - The Royal Family
She's a great character, probably the best in the show. She's so realistic and very annoying, yet funny with it. The fact she carried the Xmas '06 episode shows the confidence they have in the character and the actress, the wonderful Liz Smith.
There are lots of other good ones. I like Dinnerladies, but don't think there is a stand out character. Marlene from OFAH & GGG is good. The Birds of a Feather girls also. The nan from Early Doors is another good one. Maggie in Extra's is good, although she doesn't get the funny lines, she tends to be the butt of the joke. Susan from My Family is similar to Margot, a strong female influence who takes no rubbish. Dorothy and Debra from MBB are good characters, but take a real back seat. Lots, lots more too.
Discuss.