I think the way I would look at it is:
* Soulless commercial pop music is like hard-candy that's bad for you and should be avoided
* Nickelback is like gross gas-station food that's bad for you and should be avoided
* AC/DC is like a fast-food/McDonalds burger that probably isn't worth admiring all that much, but.... I mean, I get it-- it does the obvious things, it easily clicks at a young age, there can be a reasonable compulsion for it, and for some people, it gets the job done
* Early Led Zeppelin (or, I don't know, something like CCR maybe?) is an actually great and well made burger that nobody should think outright poorly of and is worth admiring-- once someone develops a taste for it, I don't see why there would ever be a need to go back to a McDonald's burger, personally (especially with price not being an issue).
* The Stooges is when someone understands that an unpretentious sloppily made burger can be just as effective (if not more-so) if done right, and is worth admiring.
* ... and then obviously there are better foods/artists available than even the best of that. I'm the furthest thing from a food connoisseur so I won't even bother trying to tackle that, but I imagine that even the best burgers are pretty low on the totem pole of the kinds of delicacies that are out there and however good food can get.