Upvote:5
Personally once you get past Dallas/Fort Worth area the scenery will consist of a whole lot of nothing. So if you're looking to take in West Texas life your choices are:
or
To me the choice is equally dreary though the Abiline - Lubbock Route using US-84 is likely to provide easier access to little towns that will provide more of "Texas" flavor to your journey.
P.S. If you're looking for pictures of landscape in Texas I'd recommend looking at Google Maps Street View to give you an idea of what you're likely to see.
P.P.S. You'll miss the oddity in Sweetwater that one might want to see.