Rush seems to get himself into trouble with the comments he makes concerning famous people inside/outside of politics such as the Donovan McNabb comments several years back.
Rush is, on occasion, condescending to radio callers when he does not agree with them. It is hard however to dismiss Rush. He has a powerful personalty and is compelling in his arguments when challenged by the occasional intelligent liberal who has the stomach to call in and attempt to engage him. Rush has the larger radio audience because liberal listen to him in great numbers(though few would admit it).
Sean is rarely ever insulting to his callers unless they insult and degrade him. Both use wit and humor to disarm and confound their attackers on the air. Rush has the greater wit while Sean has the thicker skin.
Both however have contributed greatly to the cause. Both have contributed to charities for Police Officers, U.S. Servicemen and there respective families.