Phish!
I've always thought of Phish as one of the best modern prog bands, but if you mention Phish to a progfan you get derided. I think most progfans really have no clue what Phish sounds like. They think Phish and they think Grateful Dead - not prog- Phish not prog. WRONG! Phish might be hugely successful and a jam band and reason for some people to trot around the country, but Phish is very progressive. I've thought of requesting some Phish on AM, but figured there's no way, so why waste my time and get people mad. But if people just took a chance and LISTENED to some of their material.. Oh My Gosh!
Quote from GEPR: "Phish can, at times, be as intricate as Gentle Giant ever was (no kidding!)."
The whole shebang:
http://www.gepr.net/phfram.html