So i started on eu, but moved to us and now play na. Let me just say that we americans (continent) draft better, are nicer, and are smarter with macro play. Overall in my games there are fewer deaths and less fights of 19vs 20, down a man, ect. That being said oh my god the microplay. I was playing guldan bc i used him to get to diamond the first time. I literally had one person run through all 3 of my corruption circles to then turn around and run back through 2 more. Brightwing and greymane would dive ana/I and id horrify both of them into our towers (this happened 3 times. My guldan winrate in eu is like 45-48 percent but in na its closer to 65.
I know people say na is easier but my rank in each is pretty similar. It mostly goes down to my ability to draft damage more often in na without issue. Also ping hurts.