I'm now curious to see if there has been a study of overage players in the draft. It would be interesting to see how it breaks down.
It certainly makes sense overage Dmen would have a better 'hit' rate than forwards. I wonder if that translates to goalies as well?
I don't have any hard numbers I'm going off of. More just experience and eye balling it.
Raw points aren't the best way to judge talent, but for simplicity, just take a peak at the scoring leaderboards. Almost all 1st year draft eligibles and usually (high) first rounders at that. Panarin (18th) is the only scorer in the top 50 that didn't get picked in his 1st year of eligibility.
Defenseman you have in the top 25 scoring defensemen:
Giordano - undrafted overager
Yandle - D+1
Gustafsson - D+2 and then UFA
Krug - undrafted college FA
Ekholm - D+1
Spurgeon - undrafted overager
Just outside of that you have:
Ghost - D+1
Muzzin - drafted but unsigned overager
Montour - D+2
Schmidt - undrafted college FA
C. Miller - D+1
Parayko - D+1
Not just regular NHLers, but impact players.
Goalies come from all different kinds of backgrounds, but the sample size is much smaller.