This is probably obvious to many in Springfield, but both Edgar and Blagojevich were/are widely disliked within the Lege. For what seems to be two very different people, the basic problem is neither would actually bother to go down to the Lege and do a bit of humble gladhandling.
Why then the difference in perception? Edgar was a downstate guy who lived in the Governor’s Mansion and his aloofness came off as Mr. Clean. Blagojevich strikes everyone as Eddie Haskill and seldom ventures out below I-80 other than for campaign stops.