I have a motor city 2nd degree black belt in the bridge and a regular black belt in the neck of my '81 Les Paul Custom. I like those pickups a lot, they're not real high output, but they still cover a lot of ground. They respond really well to volume knob changes, pick attack, and string height adjustments. Nice cleans too. The second degree is really open, and articulate.
I like the WCR godwoods as well. I had an American Steel set (godwood bridge, crossroads neck). The tone was great, but they didn't seem to be as articulate as the 2nd degree, they were a little looser feeling which just didn't work as well for me. Still awesome pickups though, and very versatile!
I also had a MCP Detroiter which seemed quite a bit hotter than the second degree. It sounded really aggressive under heavy distortion, and very articulate, but the cleans weren't as nice as either of the two black belt models. Dave or somebody else said one time that they almost sound kind of like they had been boosted-I have to agree with that statement.