I can recommend two possibilities which you may like to consider both with excellent reviews, recommended by Tom Brosnahan's Turkey Travel Planner
and within easy reach of Ephesus.
First of all in the centre of Selšuk Hotel Kalehan
Another option, a quiet oasis in the heart of Kuşadası, is Villa Konak Hotel
As the website reminds you, if you make your reservation directly with either hotel and mention that you are a Turkey Travel Planner user, you will be entitled to a 10% discount on the room rates.
Hope this is useful. If I can help further, do please let me know.