I love her as Daisy, in fact I think I watch Spaced for her more than Simon Pegg. There's just something about Daisy's character I find very appealing.
Also it wasn't until watching the Dr Who episodes "The Family of Blood" for the third time that I realised she was in it.

I think you've hit onto something there; I'm not certain it's Jessica Hynes I find attractive so much as Daisy!! Everybody would like to have a Daisy, wouldn't they?

She is, in a nutshell, the ultimate geek girl, with everything that entails. Smart, funny, geeky, fun, but also a little vulnerable and unsure of herself. She's the geeky version of the girl next door.

Not too shabby. Someone made the comment about a tree, I almost made some kind of lewd comment about sap...but I'm being good today. Still...yeah.