I've always been pretty happy with Hawke scope, especially the Airmax. But lately I've been using Vector Veyron scopes. I have a 3-12X and a 10X both compact and am duly impressed with them. I routinely use them out to 100 yards and my only complaint is I wish I'd sprung for the illuminated versions, but everything else is super. Bright, clear and track perfectly.
Also, the SWFA Super Sniper scopes are fantastic. The 10X and 12X are very clear and track fantastic. They're truly hard to beat. I'm learning I almost never change the power on variables, so I'm liking the straight power scopes.