I think Dodgealum really did an excellent job summarizing the differences in the speakers' relative sound signatures. One thing to consider is a visit to a locale with a DeVore dealer and Ulysses owner. Burning some airline miles or the cost of plane ticket seems a small price for a transducer, especially if you plan on keeping it for a while.
One other thing, Lou Hinkley of Daedalus and John DeVore are two of the best guys in audio and both are true music lovers.