For QL's Pharaoh's Elite http://www.southsmoke.com/pd_pharaohs_elite.cfm
They are on sale now too. I have never tried 3 Kings, but I have tried Golden Coals 33mm and Pharaoh's Elite are superior and less expensive.
For naturals I love Exotica. They will not roll off the bowl, last a long time, and add no taste to the shisha at all.