If you want no dust...go with the crystals. Unfortunately, I tried them with Nakita and she had a bad reaction on her paws. The skin literally dried up on the pads of her paw. So that didn't work for us. Plus they are expensive.

I tried World's Best but I found it *really* dusty. I seem to have had the opposite experience from everyone else. When Nakita would finish in the litter box she would jump on the bed, table, chair and leave really dusty pawprints. I would go to bed and I would have Nakita's pawprints left on my pillow. Not exactly the thing I want to see right before I lay my head down on the pillow. Ick!

I'm currently using Swheat Scoop. I would not recommend it for more than a one cat households unless you mix another brand of litter in with this one. Some people in multicat households have commented that they have odour problems with this one alone. I know some people will mix World's Best and Swheat Scoop together to solve the problem. I find it less dusty than World's Best and it works for us.