I liked not knowing Keith Olbermann's political opinions, because he was fairly entertaining and great with the great Dan Patrick on ESPN. At one point they had has personalities/anchors/announcers- Kenny Mayne, Bob Ley, Steve Levy, John Clayton, Chris Mortenson, Peter Gammons, Beano Cook, Ron Jaworski, Bob Knight, Bill Rafterty, Craig Kilborn, Ron Franklin (just great announcing college football), Bill Simmons (in small doses), Jon Miller (baseball), Barry Melrose, and Brent Musberger.
Honorable mention and RIP to Stuart Scott. I liked not knowing his politics and I did appreciate the, "cooler than the other side of the pillow," line, but he wasn't really my style. But I can understand why people enjoyed him.