Don't have any Sightron experience. Out of the scopes u listed I would go with the Leupy just for their warranty. Since I work in the business I hate it when customers get upset that Zeiss and Swarovski sometimes charge for repairs. If it's a real warranty issue they are great but if you broke it, being charged is quite common. It's not crazy money but usually it's something. Leupold doesn't care if you dropped it out a plane and then dragged it for 100miles behind your truck. It gets fixed fast and without charges.
