I have a guitar with H-S-H. I noticed I really seldom use the single coil, or any humbucker+singlecoil combo as in the switch positions 2, 3, 4. I usually play either the neck pickup (mostly) or the bridge. Personally I'd go for H-H like Joe Satriani. But that's just me. Whatever configuration you choose, if in the end you use crappy pickups, you wouldn't get much out of it, would ya?