Well, given that I have 10 litterboxes, who better than to do a litter experiment these are the levels: great, good, ok, awful
Premium Choice- this stuff is great for clumping, GREAT on dustiness, ok on odor, kitties seem to like it
Target Brand- ok on clumping, if you accidentally stab a clump it will fall apart, ok on odor, great on dustiness. This also seems to be the preferred litter by my crew, it's a sandy texture similar to Scoop Away
Fresh Step- great clumping, great odor control (I actually like the smell of this litter) but the dust is AWFUL!!!!!!!!!!!!! I almost choke every time I scoop and this is a week later. The box isn't used very much, so the kitties don't like it either.
Tidy Cats (blue bucket)- good to ok across the board, need to try the red bucket, but it's never in stock for the price I'd expect better clumping, cats use it
Arm & Hammer- I hate this litter, I really do it clumps good and the odor control of the actual cat waste is good, dustiness ok, but I hate the smell of the acutal litter- I will never buy this
Scoop Away- this is what I was using before, but thought I would experiment a little. IMO, this litter is the best, the clumping is GREAT, odor control is GREAT, the only problem is the dustiness, but I'm thinking about adding the Premium Choice to it (used to add Tidy Cats, but PC is cheaper) to cut down on the dustiness since PC is totally non-dusty and it should be even better since PC clumps better than Tidy Cats. kitties also seem to like this one
just thought you might be interested in my findings