It depends on what your hull likes. As Cord said you'll get more bow lift with the Mirage. More transome lift with the Hydromotive. My old boat had way to much slipage with the hydro. and a very rough ride in Choppy water. I went to a Mirage and got more bow lift, the hull loosened up and handled much better.
A Mirage plus is the same as a Mirage, it's simply cupped more. Making a 23 pitch act like a 24 when you are up on plane.