How is that important? Who they worked for and what time slots they occupied on their home station are irrelevant; the two shows made the bulk of their money through syndication, which brought them in direct competition with each other. And Stern won.
That's like comparing Milwaukee's Best to Pabst Blue Ribbon, and then asserting that PBR is for the more discriminating palate. Sure, PBR may taste a little better, but at the end of the day, they both suck.The shows are completely different and so are their fans. Stern fans tend to be younger and less educated, Imus' are older and more politically minded.