I'm curious what others use and what kind of luck you have with it.
Personally, using a Canon IP4300, I've found Canon Semi-gloss and Ilford galerie smooth pearl to provide the most accurate and vibrant tones and white balance. Canon Matte can be sort of fun to mess around with as well, and its dirt cheap too, but its results are not as reliable.
I'm interested in rags as well, but as expensive as they are, I am not liking the whole experiment with several different kinds idea. Anybody find one that stands above and beyond the rest?