Agree with FEENIX and others that have suggested you figure out the type of scope you're looking for- FFP/SFP, tall turrets vs. low profile turrets, reticle, MIL/MOA, etc.
I actually just went through the scope buying process for a new rifle I'm building. Most of my hunting here in TX requires me to get in a truck and drive to within a few hundred yards of where I'l be hunting. Most of the hunting is then stationary, so most of my rifles (except my .270 win deer rifle) are in the 13-15# range with a scope and I don't worry about the weight because I'm not moving around too much. That's why I have a few heavy but solid scopes (NF, Vortex Razor HD, etc.).
Next fall I plan to be hunting between 7500-8500 feet above see level, constantly on the move. I wanted a sub-9 pound rifle with scope, and closer to 8 is my target. LOTS of people have opinions on the best glass, brands etc. and all have bad experiences with some and great experiences with others. I love Nightforce, but they're too big and bulky for my intended use, as are the Vortex Razor HD line that I also have and enjoy. For this, I went with a Leupold VX-6HD 3-18x44. "But Leupy's track for $h!t..." some people say. Well, those are largely based on older models, and I've found just as many positive reviews out there for the new 5HD and 6HD line, which appears to suggest that the company has seen the light and is once again focusing on quality. Also, the warranty is great if the scope ever does go down, it weighs under 20 ounces, and I got one heck of a deal on it by being patient and shopping around, looking at patterns at different places for when things go on sale. I picked mine up brand new for right at $1k, which is about $300 less than it sells for just about everywhere I've seen...even where I bought it (it's now back up to $1300 where I bought it).
So, long story short- do not rush into this decision. Figure out the features you want, narrow down a list of contenders, and go put your hands on them if you can. Compare them side by side if possible. Figure out who stocks them, and be patient. You'll find what best suits your needs eventually, and your decision will fit you better than if you make a quick purchase now based on quick online polling.
