Tom,
I owned the top of the line Vulcan, the Nomad, and I have ridden Road Kings - There is no comparison! HD all the way! I have ridden a Goldwing for two years now, I have ridden a Polaris, and the Ultra Classic - the only three touring bikes there are. It is a horse a peace on these. Each has its little benefits, but you can't go wrong with any of them. And when it comes to cost there is no comparison either - Toss up!
Most people that blast the top dollar bikes aren't comparing apples to apples.