I use the Empress Compressor for a number of reasons, many of which are stated above. It's quite versatile, too; the only thing it really won't do is the super-duper 1:20-plus Tony Levin squish.
The biggest reason, though, is that it's so easy and intuitive to adjust quickly, on the fly between songs -- a must in a cover-band situation like mine.
I've owned at least 10 compressors (EBS, Diamond, BBE, Keeley ... and the vaunted FEA Labs Opti-FET), and the Empress is by far the most use-able and cleanest sounding. Congrats!