I have Sunbeams one one bass and PBs on another. At first I preferred the PBs for their denser mids and slightly more aggressive sound, but as they age, I'm starting to think they the Sunbeams are a gift that keeps on giving.
I have the SBs on a dark-sounding 32" scale bass with humbuckers, which I thought might be a bad fit, but it ended up working great because they have this pleasing high end that you can dial in. I find that they're aging nicely as well, although they don't have a ton of hours on them.
I have the PBs on a J-Bass with EMGs. At first I really liked them for their aggressive sound and smooth feel, but as they age, I'm feeling a sort of undistinguished vibe as they lose lows and highs. They're still good strings, and I probably need to change them, but over time, I've grown to prefer the SBs.
I've got a set of Fat Beams sitting in my string box. Dunno what bass they're gonna go on.