Hey sorry for the late reply
I'd recommend Emirates Aviation Services compared to UAQ from a Class B airport experience standpoint as well as the quality of training standpoint. The club in UAQ is a small outfit with only two instructors. When I was in the UAE, I had given them a call and the people who picked up were extremely rude. I got hold of the CFI only after 3 days of constantly calling them... The airport is pretty quiet too ( so I hear ) compared to Dubai and hence you dont benefit as you would at the busy international airport of Dubai. Although, another way of looking at it would be that flying in UAQ would mean that you wouldnt have to waste your money holding in the air waiting for a clearance to land due to traffic. Another difference is that the airplanes in Dubai are relatively new with new ones being ordered. They are mostly a combination of different Piper models while the planes in UAQ are Cessnas.
Good Luck!