Tough to compromise
In small West Virginia streams, you probably want the shorter, softer-action 3 wt, but in the West you'll be happier with a 9 foot, 5 wt, with a faster action. Since you like your current 3 wt, I might get a new 5 wt (you can use it for smallmouth bass or in larger trout waters in WV) and consider upgrading the 3 wt in the future. If your primary goal, though, is to get a rod to use in WV, then go with the 3 wt. You'll wish you had a different rod out West, but at least you'll be happy at home. If you can afford it, get both!