If you have a vision of the sounds you want, I suggest to just try any pickup in any position and test how it works. For example I like the sound of the EMG 85 in the bridge position and the EMG 81 in the neck position - the opposite of what is typically used. There's already a significant sound difference just by the pickup position. Then you can manipulate how much you want that difference by using either the same pickups, or making the difference even bigger (which is typically done), or making the difference a bit smaller.
