I am considering putting either the Sightron SII 3.5-10x42mm, the Mueller TAC II 3.5-10x44mm or the Pentax WTU 3.7-11x42mm on a new 7mm-08 that will be used for deer, antelope and elk hunting in open country. Optical clarity is my #1 priority, as most of the shots will take place in ample light.

Which would you all recommend, and why?