Help! Burris, Nikon or Zeiss for my AR-10T?

[flyin*bryan]

I'm looking to outfit my new AR-10T with some quality glass in the $500-$700 range. I've narrowed it down to 4 scopes but can't decide:
Nikon Tactical 2.5-10x44mm mildot ($625 LNIB)
Zeiss Conquest 4.5-14x50mm mildot ($600 NIB)
Burris Tactical 3-12x50mm illium MD ($649 NIB)
Burris Black Diamond 4-16x50mm mildot ($600 NIB)
I'll be using for target shooting and some hunting. My max range will probably be 500 yards but I may want to shoot longer ranges occasionally. Any suggestions??

 

[Thin Black Line]

Why no Leupold on the list? Are you limiting yourself to a mil-dot in
the $600 price range? L has some good reticles in that range, probably
just not the mil-dot anymore.