I wish I could help in your Chevy vs Cadillac survey but when I'm shopping Nikons I buy Monarch. It's going to come down to fine detail and light transmission. In addition you have a 3x erector vs a 4x in the monarch (3-9 vs 2.5-10 etc).
Proud Life Member: National Rifle Association, California Rifle & Pistol Association, and the Second Amendment Foundation.
Annual Member: Revolutionary War Veterans Association (Project Appleseed) and the Madison Society.