I have been playing around with these two scopes for a couple months now. Tonight i made my last range trip before my Hog hunt here in PA with Lehigh bullets.
http://lehighbullets.com/products.asp?cat=23. I really have come to the conclusion that Leupold is superior in clarity and letting light in before dark. http://www.leupold.com/_pdfs/ultimateslam_3_9x40_specsheet.pdf I do like the Nikon Omega, but i really think it's because of the extended eye relief which is really nice when your shooting stoubt loads.
I have not really compared ballistic reticles yet. The Nikoplex reticle is nice on the Omega scope. Natchez has that on sale right now for $139.99. That's a steal. The Leupold reticle is very nice as well. Right now i prefer the Leupold only because of clarity. The Omega is still a very nice scope in my opinion. I will hunt with both, and plan on testing the reticle's with Lehigh bullets and Hornady SST'S during Turkey season.