I'm gonna have to be odd man out and defend the Simmons high end scopes. I've shot the Whitetail Expedition line of scopes for a long time with excellent results. It was the forerunner to the Aetec, which is also a good scope for the money.
Up to and including the 243 the scopes have been dead reliable and hold zero, and track well through the magnification range. Clarity is surprising. Got the Whitetail Expeditions in 1.5 x 6, 3 x 9, and 4 x 12 A.O., and think they are great scopes for the money.
They have accounted for a good amount of dead Predators since I've been shooting them, and honestly do not believe I'm giving up a thing shooting them. Yes, I have owned and do own Loopies and a Nikon, so I do have a baseline to judge against.
Also, I'm not just a fair weather hunter, as I hunt rain or shine, temps from 50 to -15 degrees. No problems so far.
Whitetail Expeditions can be found for reasonable prices in gun shops, and I've picked them up for under 100.00 on Ebay. So if your talking varmint calibers, the Simmons is a very good bang for the buck.
Can't speak how they hold up on big guns, as mostly I'm talking smaller rounds, 243 and under.
I think the Aetec is a bit underrated, and would not hesitate in buying one!! Hope that helps! /ubbthreads/images/graemlins/wink.gif