Tough choice, I would lean toward the Burris mostly because of the ballistic plex reticle being available. However Nikon has a new reticle that rivals the ballistic plex out this year. Price/Quality points on both should be similar.
I don't know either scope but consider eye relief when scoping a magnum caliber. Longer eye relief for the recoil. Most quality scopes have this covered already.
Nothing like a cut eyebrow if you have to get too close to see well.
A perk of majoring in wildlife biology in college is the plethora of hunting knowledge that you collect throughout your course load. One of the most important factors in whether an area can hold large quantities of animals or produce large antlers is forage.
Most universities, state schools and even community colleges offer basic botany courses and plant ID courses. Although it might not be feasable for the average middle age hunter to pay tuition and go back to college to learn hunting...