Wyoming is great no state tax, beautiful mountains, I personally would choose any part other than east of Evanston to Laramie and north to Casper. My choice would be the Star Valley area, Afton. Near the Tetons & Yellowstone. Star Valley was not named for it's shape rather than the experiences of a group of Mormons sent by Brigham Young to settle the valley and they near starved to death the first year. They called it Starvation Valley. The Wyoming tourist industry decided it wasn't an appropriate name to generate interest and renamed it Star Valley.
I like that version more than what is the accepted tale.