I have owned Nikon, Bushnell, Leopold, and Redfield, all in the $120-$300 range. Here is my take.
Leopold VXII: Love the glass, easy range of full light, love the great eye relief on harder kicking rifles, HELLA FINE SCOPE!
Nikon Prostaff/Buckmaster BDC: Without question the best value of the bunch I still have three of them on my current rifles two Pro Staffs and one Buckmaster, also great glass, low entery price, love the easy to read BDC. I shoot Nikons more then any other including on my hardest kicking rifle, and I have never had to move the zero on any of them.
Redfield Revolution: I bought this because I was told it was the same as the VXII but that is not the case, nice scope but I was a little let down with the glass quality, I use my Leopold or Nikons to see where my Redfeild is hitting on the target, the difference in quality is that noticeable.
Bushnell Banner DOA: Never again, put one on my 7mm Rem Mag and it's lack of eye releif get's painful real quick, busted my nose on the first shot, even on a lower intensity cartridge I would much rather spend the extra $20 and get a Nikon, they just have better glass.