I have been to blue knob twice. Last year it was icy... and I loved it. This year was a powder day... and it was awesome (for PA). Check out Stembogan if you get there. Oh yeah, and the ditch glades.
Its really the only resort in PA with any significant character. Its got the only bowl or glades in the state. To those who complain they aren't open enough... its in Pennsylvania. We take what we can get. Oh, its got the most double black terrain in the state too.
If you live in PA or south, you need to check this place out.