Either brand will do the job. As timk said, everyone will have their opinion. I have friends with with Fords, Dodges, and GM's, some have problems and some don't. I like my 3500 for towing and would never go back to a SRW, and I have 110K on my trouble-free GMC. And as timk said the current trucks have a new DPF exhaust system that some have had problems with. Nothing major except with the first production Fords, and all have been updated. The 2010 models will undergo an even more stringent (read expensive, and most likely more trouble prone) exhaust system makeover. These changes are actually reducing the mpg numbers for these trucks but are supposedly cleaning the exhaust up a little better. Shop for the best deal and what appeals to you, you can't go wrong.