To start the discussion off, I'd have to say the latest update on Christopher Higgins, which currently is at 8B. Meaning his potential is a 1st line forward, and the probability is that he should reach potential, though it says he may drop 1 rating to at worst a 2nd line forward.
Now, I'm a big big fan of Higgins, have been since watching him at the 2003 WJC. The guy can flat out skate and has the smarts and feet to become a NHL player. I have no doubt that he'll be playing in the league at some capacity, but I don't think he has the offensive abilities to play an offensive role in the NHL. HF.com has him ranked as a 1st liner, at worst a 2nd line forward. But he hasn't shown me the offensive skills to play anywhere higher than a good 2nd line forward. Realistically, I have him penciled in as a great 3rd line player with 40-50 point upside (20-30).
I don't think it's "way" off... but it is somewhat overrated. Not Higgs, but the expectations.