Re: Staggered or flat? - single coils
The stagger is for a wound G, so the B string is way quieter than the G on a vintage stagger. Some guys like it, but if pickups were to be staggered "correctly" for a plain G, the G pole would be lower than the B pole (in relation to the strings, radius notwithstanding)
I like a reverse "Hendrix" stagger, too. It's a little more balanced from strign to string. I don't like flat or "radiused" which is essentally flat from string to string. I like some stagger. I like it when pups have plastic bobbins around the magnets so I can do a custom stagger, too.