I ran an M3 3.5-10 Vari-X III, the NXS 2.5-10x32 and the NXS 2.5-10x24.
For all around shooting, the 32mm NXS is my choice. The M3 is a great meat eater scope but when I move from 100-200 to 700 quickly, fucking with the parallax made it “slow”. The fixed parallax of the NXSs are fast, and the 32mm has much less parallax than my 24mm. That said, I have taken the 24mm to 1k with 77SMKs over 24.5gr RL-15 without any trouble if the wind is down.
I also own a 3.5-15 F1. Terrific scope. If you’re not worried about clone correct I don’t know that you could go wrong with it.