I have this scope with the Mil-R reticle. My first NF (NXS 3.5-15x50) has a MLR reticle, I fell in love with it and the 3 NF's I bought since then has a Mil reticle (MLR, Mil-R, or MLR-2). I prefer Mils as it is faster to dial (fewer clicks) than MOA, and with fewer clicks I am less likely to get lost. If there is a downside it's that when shooting small targets (think 1/2" dots at 100+ yards) I sometimes have to use hold offs as the target may be between clicks, where a 1/8 minute target turret would get me closer. This does not matter at all on a hunting rifle. Definitely get the zero stop. It helps you recover if/when you get lost, and it's just one less thing you have to think about. Another advantage of the zero stop is you don't have to come off the target to get a look at numbers on the dial, just watch your target while you count clicks and your fingers do the turning. When switching the scope between rifles just note how many clicks from the bottom gets you back on your zero.
Get that scope with the ZS.