I have no idea on load factors but have been on DXB flight 3 times in Business class in May, and on each flight I would say an average of 85% full in that class, although EK019 on 30/5 was only about 50% full, maybe down to bank holiday in UK. Crews say that they are always good loads to and from Manchester (all those former BA Flyers who will go through Heathrow maybe !). Have been on SQ twice since Jan and they also appear to have healthy loads. Do not know about other ME carriers. Another slight observation in that I think the service is better on 777 on the evening flight, rather than lunchtime A380 due to crew to passenger ratio I would think.