So Estonia, Poland, Romania, Bulgaria, Slovenia (or is it Slovakia?), Lithuania, Latvia, Slovakia (or Slovenia?), and Greece have more valuable passports for their citizens.
If you travel a lot in East Asia, Japan's passport is awfully useful and has much nicer perks than US citizenship.
Obviously, France, Britain, Canada, Germany, Italy, Sweden, and other core wealthy nations have much, much better deals for citizens, too.
The US passport and citizenship is more and more like a third world quality passport every year, with one major exception. That exception, of course, is the right to live in the USA, which is a dang nice country with excellent open country, parks, forests, space to breathe free, big highways, fishing, hunting, the right to keep and bear arms, and fine honest people.
But if you don't love this land, you're better off with Latverian or Hungarian or Freedonian citizenship, because our politicians have done squat to keep our citizenship valuable around the world.