Hmm, you're right, Finder has a lot of good things over Explorer, also search is mostly superior. I get annoyed by things like forced hidden system folders, fewer fields available for file sorting (I've been annoyed by being unable to sort images by resolution), how they try to hide the path of files which is especially annoying for search results. I guess it's another of those things where some things are better and some things are worse.
There may be some features I'm missing though, I only use Win10 for gaming.