Leupold. If it breaks you can drive it up to Beaverton for service; if you don't like it, you can sell it for near what you paid for it. I'm sure the Zeiss is good glass, but unless you can get it for a better price I see no reason to not buy the Leupold.
Also, for varmints check out the Bushnell Elite 3200 10x Mil-Dot scope, I bought one used and am very impressed with it. The scope is clear, sharp and contrasty. They run $180 and come with target turrets.
Last edited by Oregon45; 12/02/07.