I've never owned a TH before, but have seriously considered it for years and years now. I think the biggest factor with a TH is to make sure your tow vehicle can adequately tow it. Looking at your signature block, I think you have an adequate tow vehicle for an average size unit. Other than that, it's pretty much your choice.
Options include fuel tanks, beds in the garage, benches, work space, tie down holders, ramps that can be used for a deck, stuff like that. The TH you select, will it have an open concept, or will it have a wall between the garage and the living space. I've seen some really great TH's that have movable walls. They swing back like a gigantic door... Really cool!
Weight is your biggest factor to make sure your tow vehicle is adequate. After that, the choice is yours!