Paul I use lump exclusively and have to agree that it only burns hotter if you let it. I have tried kingsford before however, and didn't find it burned any longer.
To be quite honest I am very suprised that more people here don't use lump. There are some very knowledgeable people on this site, all with lot's more experience than me, but I personally get better flavour out of lump.
It makes sense to me that you would, as you are basically burning real wood and not a by-product of wood. This is just my opinion however and there has been great debate over this topic on the forums, and I'm sure it will go on and on and on for a long time to come.