In my opinion a lot depends on the following: 1) how much money one can afford to pay, 2) how much shooting one does with that particular rifle, 3) how much recoil the rifle has. A high recoil rifle has to have a good quality scope or the cross hairs will shift. 4) some people have personal preferences for certain brands. 5) target shooting or hunting. When hunting one gets into a variety of light conditons.