What does "best" means? Which population size would you consider comparable to the US (i assume you don't meant it in a way in which Germany would be the best 83,6 mil population country in the World)?

Well, it's certainly not the "best" if you remove that population stipulation.

A bit like saying that Walmart is the best 4000 store grocery store in the USA.

What's the point of this comment? It says little, accomplishes nothing, and convinces no one of anything.