theres not much left to say
without just simply getting into an argument. if you honestly believe that rowlings books are better than most other new books out there, which you actually seem to do, then, yeah, lets just chalk it up to a basic difference in taste. but, if you're wondering, and in fact, surprised, as you say, that they're not being discussed in this vein, perhaps you should second-guess your opinion, at least as you expect it to apply to other readers.
i'm just astounded that someone would come to a site like this and essentially claim that rowlings work is better than the vast majority of other books over the past several years, including that of pulitzer prize winners. now that is surprising.