You don't give a budget. There are some very good scopes in the $200 range that I'd not hesitate to use anywhere on anything. Moving into the $300-$400 range gets you a little better scope and for me this is the sweet spot. As price goes up past the $200-$300 range you have to go up significantly in price to see very small gains in performance. The more expensive scopes are better, but most people will never notice the difference in a $1000 scope and a $400 scope. Unless it has special features only available on the more expensive model.
No matter which brand you choose a 3-9X40 will give you more for the money. A typical 4-12X will be about $100 more than the same scope in 3-9X. 9X is more magnification than most people can use on a big game rifle out to 400-500 yards. For varmints or smaller game more magnification is a plus.
Same with 40mm vs 50mm front objectives. The bigger scopes just cost more and don't offer any real advantage for 99% of shooters.
In the $200 range I like the Burris FF-II and Redfield Revolution best. The Leupold VX-1 is a contender as well.
At $300-$350 a Leupold VX-2 is my choice, and what I use on my go-to rifles. I paid $350 and got the long range reticle, the standard duplex reticle is $300. I like the VX-3's, but they just aren't worth the extra money compared to VX-2. Especially those made in the last 3 years.
Zeiss used to make a 3-9X40 version of their Conquest. It was actually made in the USA by Meopta and was considered to be one of the best values in scopes. They originally sold for $550, that is what I paid. Over time to compete with the VX-3 prices were reduced to $400. They dropped that scope a few years ago and replaced it with an imported scope called the Terra. The Terra just isn't as good.
Meopta is now making the same scope, but selling it through Cabelas. It has Meopta in tiny lettering on the bottom where it won't be seen once mounted. The rest of the scope has Cabelas markings on it, but it is the same scope sold as the Zeiss Conquest a few years ago. If you have a $400 budget this is the winner by a landslide.
http://www.cabelas.com/product/Cabe...3BSearch-All+Products&Ntt=euro+instinct+scope
The 3-9X40 version is the one I'm talking about.