How much holiday do you get?

On about 14-15 weeks for us (no weekends required) Usual UK patterns but 3 weeks instead of two at Christmas and seven week instead of 6 summer which I'd say am pretty happy about about. I have heard as high as 17 but I think most of those require at least some Saturdays which would be a no for me.

Anybody beat this? Or any poor souls out there at the other end of the spectrum?