Thanks for the reply. I'm sure you're right that the Crawler has the most bass, but the clips I've heard make it seem to lack some "bite" in the highs (which actually might end up fine in this guitar, not sure). I almost wonder if I should try the Nailbomb here, though I found it too aggressive in another guitar. I seem to remember it having both a lot of lows and a very bitey high end.
I'm curious about some of the lower output pickups, does the VHII have a lot of low end? The Black Dog (I've heard that's more just a lot of mids similar to a Holydiver)? There's a post from someone here saying that the Peacemaker almost sounds like it has a high pass filter on it, like it cuts a lot of the lows below 120 Hz or thereabouts, so I don't think that I want that. I don't need something bloated, but with deep, extended lows, a very broad frequency response. Not necessarily wound to be focused a ton on the mids like some of the more modern pickups seem to be, so I wonder if a lower output pickup might be best.