I would have expected a 90's Centaura to have a JB in the bridge instead of a '59. Have you checked the sticker on the bottom to verify what it is?
One has to take care to describe the desired tone of a pickup with respect to the type of amp and amount of gain used. Played clean, a PAF is rather bright and clear, but under distortion it can lose focus. Higher gain pickups like a JB sound darker and thicker clean, but the extra mids really scream and cut under heavy distortion.
If you really do have a '59 and don't like how it sounds loose and unfocused under distortion, the Duncan Custom, Custom Custom, Custom 5, and JB are all good options to increase the midrange cut and presence. The first three are all the same coil with different magnets - ceramic, Alnico 2, and Alnico 5 respectively.
I find the BBQ Bucker, and Rio HB's in general to be too dark for my tastes.
If you really want a stout and thick pickup, the DiMarzio Tone Zone is cool too, and was used in the later Hamer Diablos.