We've been to Icmeler a good few times, and love it. Mostly because its quieter, relaxed.
We've never done 'nightlife'. We've usually gone for a meal, wandered back to our much loved apartments for the evening. This time - next week - we're going with friends, and wonder where you would all advise as the best bars and restaurants to stay after half nine! I know you'll have great ideas. One of the couples we're going with have never been to Turkey, I hope they'll love it like we do, so your advice would be great.