I have more experiance with Duncan pickups, but in my up coming alder bodied RG, I want to try a Tone Zone in the bridge, but what in the neck? I figured I would give the Dimarzios a try for something different.
As always, it really depends on the type of neck pickup tone you like.
More classic tone? PAF Joe, VirtuAL PAF, etc....
More "modern", Prog Rock tones? Evo neck, Air Norton, FRED, etc...
Let the way YOU play aid in your decision making. Be honest with yourself and choose a tone that you REALLY like. Meaning, one that would make you want to play for hours on end. Choose the neck pickup accordingly.
It takes a lot of trial and error to find the right pickup. Reading reviews, and other players comments can help to a certain point. The only way you'll really know is when you install, and try the pickup out on your rig, with your touch.