Too often, I hear authors speak of editors as adversaries or say they want to "steal my voice."
Why would they want to do that? It's your book and you have to stand behind it. I usually hear that cry from defensive, insecure writers who aren't willing to be edited.
You may encounter an editor who "doesn’t get me," so break off the arrangement and work with one who does. If your publisher assigns an editor like that, it's all right to ask for a different person. But be sure that's the case and not your defensiveness.
Think about these things when you work with an editor.
* Assume your editor wants a quality product. You don't have to agree with everything your editor suggests, but you need to have the attitude that she wants to help you.
* Assume that your editor knows grammar, word usage, and style.
* Assume an editor wants to work with you; he wants to maintain a good relationship.
* Assume your editor is able to be objective enough to push aside personal prejudices. (If not, you'll grasp that quickly.)
* Assume your editor knows she is not the writer. Some editors forget they are only editors and try to remake your material to fit their personal tastes, but they're exceptions.
* Assume your editor has a broader view and knows marketing better than you do.