Oykun is a great choice, stayed there a couple of times and really liked it. Been to Club E many times, I'd say slightly higher quality than Oykun but the main thing is as Lynne just said - you can hear a pin drop, even in July and August at Club E. For me that is lovely if I was going with the good lady but not one for the whole family.
You wouldn't regret choosing either though I think.