I knew KJ Big Block was good lump charcoal, but I cook on my KJ Classic a lot, and I go through some lump. So I have had the opportunity to compare a lot of brands. I've used Royal Oak, Kingsford, Jealous Devil, and several other brands. After trying them all, I have become a loyal KJ Big Block user. It's just better - bigger, denser lumps that burn longer and cleaner. It lights easily and stays lit. It just works.