Personally, my preference is Leupold. Nikon does make fine optics also, in fact I'm probably going to buy a Buckmaster scope for my m/l soon. I have a friend that has a few Zeiss, they are very nice, but for the additional $, I don't see much, if any advantages over the others. I don't think you could go wrong, no matter what you choose. Look at all of them, decide what you like/dislike, and how much you want to spend...and you are good to go! (LOL...I know, easier said than done <img src=icon_smile_wink.gif border=0 align=middle>)