You should show him the poll results! What's his favorite thing to do - music, food, history? Maybe I can come up with something to help you persuade him. FYI my favorite hotel in both cities is the Loews.
He's into country music, so I think that's what's appealing about Nashville. I really think he would enjoy NOLA, but with the distance it may be better suited for a longer trip. I'll check out those hotels, thanks!!!