I own two Leupold scopes and they are good. However, I believe the Nikon is clearer. The reason I bought the Leupold's is that there lifetime warranty extends pass the original owner. The warranty is transferable. I found that a selling plus if I wanted to sell it and a plus for those rifles I want to pass on to my son.
Nikon's warranty is not transferable, at least it wasn't when I looked at them a couple years back.

I personally am saving my pennies to buy a Kahles for the 7WSM I have. But you can't go wrong with Leupold or Nikon.

-Mathewsconquest2