VHII - bright, thinner sounding, like a bigger single coil sound. Great in a duller sounding guitar from my experience.
Black Dog - punchier yet still bright, thicker than the VHII.
If your LP is a bit duller sounding, I'd opt for the VHII or the Riff Raff. In fact, I'd suggest the Riff Raff anyway! :lol: