Miracle box vs Eagle eye - Experts are Welcome!

I have to decide to buy a Flashing and Unlocking device for China Mobile, please expert advice me to which of the better one for repairing:-

1. Is Miracle box better than Dragon box for chines mobile phones
2. Is Miracle Eagle eye is better than Miracle box (Compare features and capacity)
3. What is the latest version of Miracle box and Eagle eye
4. Can Miracle or Eagle eye repair Android Phones IMEI or Flash
5. Overall which is the best for chinese mobile phones?

Thanks you very much in Advance