I have used both for hunting.The Swarovski are a little better in low light,and a little less glare when glassing near the sun.But this comes at a cost,around 750.00 more in price,and 11oz in wieght.The Zeiss in my humble opinion are a better pair of binoculars for hunting.The two reasons are price and size.
If price is not object,and you also need a range finder,I would look at the 10+42 Leica Geovid Laser rangefinding Binocular.These are a very nice setup.(There on my wish list)