I'd go with the Blues Trembucker for warm and crunchy. It has more mids, a little more output, and more warmth than the '59. It is without a doubt my favorite bridge pickup in the Duncan lineup. In fact, I'm going to have the custom shop wind me a standard spaced, standard polepiece version with a nickel cover so I can get that sound in a hardtail guitar. I'm planning on experimenting with some new magnet swap ideas, I'm going to put an A3 '59 bridge and an A2 Jazz neck in a Wolfgang. I know a couple people have really liked the A3 '59 in the neck spot, but I haven't seen anyone try it in the bridge yet.
Ryan