I don't know the Turkish Lounge, nor the Oman Air lounge (although I remember walking past that a few years ago and thinking it looked quite cool).
The Sakura lounge is good, but with very restricted opening hours.
My memory of the Air France-KLM Sky lounge is that it was pretty poor.
There isn't much to differentiate between a Miracle First and Miracle Business lounge, but they are fine if there's nothing better open.
I think your lounge choice will depend upon what's open when you're there. It would be good to hear back about the Oman and Turkish lounges on this thread.
