Prejudice: unreasoning opinion or dislike (OED). The only reasoning in the original post seems to be that Mike Harding likes it. To be truthful, Mike Harding likes every track he plays "I thinks that's simply smashing!", he's an enthusiast.

I don't believe I expressed an opinion on Seth in my post. Of course personal taste is subjective, but surely one should try to be objective in expressing opinions and not base them solely on unreasoning dislike.