RE: AXE EZ vs. AXE CP
The EZ is a lot easier to fly, however, it is not capable of any 3D flight and it is not nearly as agile. If you don't plan on moving up to 3D aerobatics ever then I would seriously consider the EZ.
I bought the CP because I will eventually learn 3D flight and I didn't want to have to buy another heli that quickly. (I WILL learn!)