There is only one way to buy property in Dubai. Study the freehold everyday and look at prices over the last year. Where are people buying today.
I will tell you to buy one place. The next will tell you something different. We all have different experiences with the dubai property market. Or some people just like to dispense advise out of the blue with no personal experience.
Generally Nakheel has the locations. Emaar has the built quality. Dont touch the rest. Thats my a opinion.