All of them. I keep two of the Taricha species and they are both cool. I’ve also seen the other two species that I don’t keep. Taricha in general are a great genus, I can’t choose just one.
T. g. mazamae isn’t a legitimate subspecies. There are animals with dark markings found at various areas throughout the Cascade mountain range in Oregon and Washington, and elsewhere. Most scientists don’t consider it a ssp anymore for that reason. In reality, T. granulosa with dark markings aren’t all that uncommon. I’ve found plenty of them, and know of populations that have a high number of dark marked individuals (outside of Crater Lake).