I think Spain is ranked number 1.
Discussion
NBA champ would crush Spain.
Not really. NBA playes mostly one style. Its more show to make as much scores possible.
Defense tactics are mediocre.
Most of those dunks and layups you see are travel violations.
And offensive fouls are almost nonexistent in the NBA.
Its just loosely regulated games. As soon as you bring back basketball rules and tactics NBA players are not used really used to, it becomes difficult to win.
The entire globe competes TO play in the NBA. There is absolutely no shot, in any world, where the US is not the best basketball team. We send our fourth string scrubs to compete in the Olympics and still place globally.