The blazer is a low end simmons, the Nikon is the best of those three, the bushnell in the middle somewhere...Keep in mind that you're looking at a rimfire caliber in the 22mag, that said, you should be looking at a scope with either an adjustable objective(AO), or you're going to have a difference in Point of aim and point of impact at ranges other than 100 yards due to parallax. Most big game scopes have preset parallax at 100 or 150 yds, rimfire scopes are set at 50yds. An AO scope can be set at any range depending on the scopes spec, usually a minimum of 50 yds, some way less. AO scopes are heavier, but allow you to shoot more precisely at all ranges. hth