Since I am in the mulch business, I have my own opinion on which mulch is best, but I would like to here from you guys what you opinions are. Here in Tennessee, we have the following choices that are readily available to us: Hardwood, Black Hardwood (which in most cases is hardwood mixed with charcoal ash to make it black plus leaf compost), Pine Bark, assorted colored wastewood products, and pine straw. Hardwood is generally the least expensive and most widely used, with the Black Hardwood coming in second. I personally like Pine Bark - it's much cleaner to work with (esp. if you have ever dealt with the Black Hardwood), actually emits a good smell, more natural looking, and does not tie up as much nitrogen as Hardwood while decomposing. Any opinions you guys might have (esp. anyone in Tennessee or surrounding areas) would be appreciated.