Duncan Seth Lover's and 57 Classics have been recommended as replacements often for semi hollowbodies.
Seth Lovers are softer sounding and feeling. They are low-powered and have a compressed sound. They aren't wax potted so volume could be a problem. Most people really like the 57 Classic in the neck with a 59 or PAF type in the bridge as the 57s tend to be a little thin sounding on the bridge.

On the other side of this, I hear many are happy with the pickups after they replace the pots with something better.