Goddahavit hit the nail on the head. Stumps gets LONG burn times with the smallest amount of effort. It has a tiny learning curve but requires you put flavor wood in every so often. with a backwoods you set it up in the beginning and tend to it a little to get it where you want it but then it should chug along. If it needs more charcoal, it is a bit more work. They cook faster because of the reverse flow and use water. They are more difficult to clean up as well but put out a great product.
Both are great cookers and have their positives and negatives. If you want ease, nothing beats a stumps. If you want water and more smoke, go with backwoods.
2013 Stumps Classic - Delivered 4/15/13
Large BGE - Rescued 2012
2010 WSM 22.5"
2010 Weber genesis gas grill
Rescued 22.5 Weber One-touch gold
BBQ Guru CyberQ
2011 Built UDS - Retired