NB and ASH have guest starred in shows, and ASH was a regular on a recent BBC show called Merlin but that's pretty much it. SMG has had numerous movies (but a lot of them had bad reviews). Aly has probably gotten the most recognition through her role in How I Met Your Mother.

Yup, on board with my Twinlet.

NB had guest starred here and there. ASH guested on a few things, including Doctor Who which was brilliant, and then did Merlin. Personally I think SMG isn't getting the roles that work with her talent. She keeps picking either horror movies or strange dramas when what I believe she needs is a movie close to what Buffy was, an action comedy with a heavy emotional thread.

Now onto Aly. All I believe I must say is this: Lillypad.

She has a hit tv show, How i met your mother and has done some films

I completely agree, ArabellaElfie.. Sarah is a good actress but all her roles she has taken have been pretty crap, i wanna see her do something really good again!

i agree with katie. aly has definitely had the most success!

I am one hundred percent bias but...Obviously Alyson =D The biggest thing Sarah has done is Scooby Doo *Lol, awful movie*

yeah ! ! ! Aly of course.

Most definitely.

Of course HIMYM, best tv show ever. Lily and Willow are my favourite fictional character of alltime. I'm so sad it is going to end in two weeks :(. Alyson Hannigan is a really, really good actress. I even cried once while watching HIMYM because of her. And I don't cry while watching Sitcoms that much (actually never except one time).