Unholy or frost with gsse?

What spec has the best results with gsse unholy or frost? i dont neccesarily mean big one button macros , people tend to focus on them , i personally use gsse mostly for my basic rotation , it can save me 2-3 spells which is great value , i wonder which one of these specs can utilize gsse better for the basic rotation?

All 3 specs work fine with it.