I have both scopes either will suit you well. The AMG is lighter, has the ability to lock the diopter in place but does not have the little indicator to tell you when you are above 10 mils.
The Razor has more magnification, does have the revolution indicator, and has a 56mm objective which gives you a better field of view.
I own 3 Razors and one AMG and both are great scopes.