HD, it's all about the bells and whistles. How far do you want to shoot, do you like a BDC reticle or the Rapid Action Turret. When I am hunting I like the BDC reticle, target shooting at known long ranges the Rapid Action Turret sure is nice. I have shot both of the 3-12's out to 600 yards a number of times and it is fun. The 1-4 is great inside 200 yards. The Point Blank Reticle lets you pick up targets quickly and connect with your shot.
Definitely check out Nikon's Spot On Ballistic Program for whatever Nikon Scope you choose. It's free and will help make you a better shooter.
Here's a pic of a Smith 22LR that I put a M-223 1-4 on. Huge fun and it helps make you so much faster on short range metal targets.
Drop me a note with any questions.
http://i1216.photobucket.com/albums/...hM-2231-43.jpg