franks -- I'd love to read that essay.
As for Gaddis, you could probably make a strong and accurate argument that his humor sometimes takes way too much work. But I think some of the best "jokes" in his books are rewards for actually picking up on the little thrown away details (as in JR when Eigen or Gibbs -- I can't remember which) gets beat up by the five Jones brothers for calling them "the five Jones brothers" in spanish. It's such a dumb joke, and that's pretty much all the info you get, but if you can put it together without just rushing by it's pretty funny (to be pedantic: five jones = cinco jones = sin cojones = without testicles. It's an awful lot of work to get to a ball joke). But the overwhelming nature of the language makes all the situations so much more chaotic and amusing. I mean, he's not hilarious, but he manages to keep things pretty light and amusing in what is, at its heart, a pretty bitter and sad book.
I really love both JR and The Recognitions.