I have recently begun using Nature's Miracle. It seems to have all of the benefits of the various other ones I've tried and liked without the negatives. Smells great, flushable, not dusty. Only real issue is that it occasionally tracks a tiny bit more than other litters.
Previously I have used World's Best and Arm & Hammer and liked both of those. The former gets a little "weird" after a while, not sure how to describe it. Pale and hard almost. The latter smells bad after a while. Nature's Miracle seems to smell decent indefinitely. Nature's Miracle is a bit pricey, though, at $10 for a 10 lb bag.
I do not like swheat scoop. It is the dustiest litter I have tried. If the litter above is even dustier, that would make me feel like I'm living in the desert I would guess.