RE: Nikon vs. Burris vs. Bushnell
You won't go wrong with any of them.
I recently checked-out a FFII, and was quite impressed by it. However, I didn't compare it to the 2 you mentioned, so I can't give it a nod or a slam.
Just to complicate things, I believe the Nikon Monarchs are being closed-out at many places at prices that are almost even with the Buckmasters. My understanding is that the Monarchs are a goodly jump in quality.
In any case, your eyes are the ones that count. I'd recommend checking them out (after focusing each for YOUR eyes!) at twilight at an outside target. I parked my car 300 yards away from the door, & put a recently shot target in the window. The scope I chose showed the bullet holes more clearly than the others.
Good Luck!
FC