Skinner or Ranger Point Precision.
I have tried both, and really prefer the RPP cloverleaf, as the skinner required a very high front sight, although it does have multiple aperture sizes. I use a fiber optic front with the RPP and can keep the hood on. With my old eyes, I can still bang steel at 100 yards, maybe 3-4 MOA, I am sure most folks could do better.