I'll put my two cents in, six and a half years later:
I think I've read all of Moore's novels, except The Stupidest Angel
, maybe. I enjoy his stuff, but I do think he's sort of a two-dimensional, beach-read version of Tom Robbins. For me, Moore is like Sierra Nevada Pale Ale, which I like, even if it is somewhat mass-produced, while Robbins is more like a small-batch, handcrafted oatmeal stout, which I can truly savor and appreciate.
Nevertheless, to each his/her own...