What's so great about Medved? He's a walking encyclopedia of facts (witness his game show appearance at the tender age of 16), but he has an irrational hatred of Alan Keyes, third parties or anyone that disagrees with him on, well...ANYTHING and can't bring himself to criticize Republicans.
I live in Seattle and have listened to him for a long time. Nothing to see there. Move along, folks...Hugh Hewitt is MUCH better in my estimation, but of course, different strokes...
I've heard him criticize Republicans before. As for his "irrational hatred of Alan Keyes" (a mischaracterization and exaggeration, to be sure) and "third parties", as far as I'm concerned, his credibility is only enhanced by your description.