Rifle Scopes : Leica ER vs Leupold VX-6

Okay I've found a novel way to settle the dilemma for me.  I'm just going to get both.  Friend of mine wants more magnification and is going to trade me his VX-6 for my Weaver tactical that I have sitting around and I'll pick up the Leica.  One will go on my 260 Rem that I'm converting from a long range rifle to a hunting rifle and the other on the CZ 550. 

I understand the ER line is being phased out in favor of the illuminated ER line, so timing is right.

We'll see how both models stack up according to my eyes and doubt I'll be disappointed in either.