Between the death of my Evo (the worst 30 buck investment in gaming yet) and the purchase of the X-52 I now use, I attempted to map rudder controls to an old gameport CH stick I have. That was the most frustrating thing I have yet managed to setup with regards to my controls. I suppose it's a matter of what you're used to, and how determined you are to adapt. I doubt, given what I've seen in other people's stick profiles, that anyone but a monkey or lunatic could tolerate mine, but it's interesting to see the wide variety of setups.
I've used twisty sticks almost exclusively, and trying to adapt to rudder input as a set of buttons proved almost impossible. I'm still threatening to destroy an old stick to make it into rudder peds, but I've yet to rationalize wasting the time, figuring I'll never get used to using my feet.