[rhettyeakley]

All-time most underrated HOfer whose cards sell for "common" HOF price but shouldn't is Eddie Collins-nobody is even close. He is every bit the player of any of the "star" HOFers of the era like Speaker, Lajoie, Sisler, and even arguably Wagner. The guy is the only one of the early HOFers who seems to get no respect as it relates to card sales--never really understood why to be honest with you. Years ago Sisler was the same way but his stuff has seen a huge increase in both price and popularity over the past 10 years or so.
-Rhett

Honorable mention goes to Paul Waner--he was way better than his little brother but rarely sells for any more than your average HOFer. Collins still gets my vote though because he played more time in the dead-ball era.