The Bill Lawrence USA L-500XL is my favorite passive bridge pickup. It's got an amazing clarity to it for a higher output pickup... and It has some very unique characteristics to it. It's bright because of the higher resonant frequency, but not at all icepicky. It's a razor sharp, defined sound. Kinda relaxed mids... Thick on rhythms, vocal on leads...
The B&B version of this pickup is not the same, it has a more typical sound to it, and is a bit higher output. I think the usa version is more detailed. It has more of that razor sharp rhythm sound that I like.