Kevin, don't you even like the overtures-- Tannhaeuser, Lohengrin, Flying Dutchman?--or the choruses? I love a lot of those. Admittedly I'm sure it helps that I've been in orchestras which have played the overtures, and in choruses which have sung the Wagner choruses--an unearthly experience.
The arias, etc., which go on forever--I'm with you there. I think somebody also said Wagner has good minutes and awful quarter hours.