Re: Alnico II Pro or JB Model in a Les Paul bridge
1. APH in my opinion. Vintage sound and takes gain really well for modern stuff. JB has a great lead voice, but has an upper mid spike that I find offensive for most other applications. Some like it, so take that for what it's worth. I've had them both in the same guitar, APH hands down.
2. APH is smooth, sweet and singing. It cleans up very nicely, and takes gain really well while retaining articulation. You can go vintage or modern with this pup. The JB pushes the front end of the amp too hard for my taste.
3. Pair it with annother APH neck...best neck pickup on the planet (well, for me anyhow). Match made in heaven. You can also go Seth, PG or Antiquity in the neck for a slightly different flavor. I'd stay with annother A2 magnet in the neck though.
By the way, that's what's going into my 03' Standard very soon.
That's my $.02