I live in Germany now and have taken the opportunity to visit other European nations. I've also done a coast to coast road trip of the US.
Overall Europe has way better smaller cities and villages. They are actually liveable and have their own charm and feel. The largest cities are comparable to the largest US cities. They offer different things to those that live their and visit, but overall comparable.
Although the suburban sprawl of the US is an absolute hellscape and is just about the ugliest type of community imaginable.
Once you get outside of the suburbs though. The US natural landscapes wins hands down. There's a reason people from across the world visit Yellowstone. Not to mention the amount of empty space especially out west is something I truly miss. At least in Germany the greatest distance between any two buildings is 10km. That's the most remote you can get in the entire country. True wilderness is definitely something I miss