I am originally from Hungary, Budapest. The weather is nice, you have proper seasons, but it might not be civilized enough for someone from the US. I would go there for a week to have some fun.
I lived in Germany/Luxembourg for a while - there people don't like to speak English. Literally they would look at you, and you can see they understand you, and still refuse to reply in English. I find that annoying.
Now I live in Dublin, and this is a very welcoming country with outsiders, I never feel unwelcome. The weather is like crap, and Dublin is incredibly expensive even compared to Luxembourg, so don't move here either
If it was up to me I would move to a big city with nice climate, close to the airport, so I can travel a lot. Barcelona is really great, and I think Gibraltar is not bad either, they speak English there.
I would go for Tenerife as well, once they improve the internet connection.
I have been to the Netherlands once, and the atmosphere was so chilled, it felt completely different from anything else I experienced before. Everything was so calm, people spent their weekend afternoon picnicking in the Park, and no, they were not high, just regular families with babies next to a group of guys playing balls.. Now as I think of it I would like to live there, close to the airport, so I can go to Spain for a bit of sunshine
For me language is really important.