Denver to Vegas roadtrip

My wife and I are planning a big road trip over two weeks. It's our first time in the states and we can't wait - Denver to Vegas.

The aim is to see the best national parks we can along that route - we care more about doing a handful of places well than cramming in as much as we can. So probably a couple nights in each place, but for Yellowstone we were thinking 3 nights? The trip for us is all about National Parks, Wild West saloon style towns, wildlife, good food, country music, etc.

My question to you is, what would you recommend? What do we have to see along that route? What areas should we stay in? Any other pointers and tips for us?

Also, does the America the beautiful national park pass cover us both for entry to every national park?

So far our route looks roughly like this - but we're so open to suggestions and changes.

We were thinking Rocky Mountain National Park, Grand Teton, Yellowstone, Jackson WY, Moab, Bryce Canyon, Zion, Grand Canyon, Vegas.

This is a loose schedule, so please suggest any changes to the route - we want amazing wild west scenery - mountains, canyons, lakes, rivers, rocks, wildlife, small western towns good to stay in.

Thanks a lot in advance, Redditers.