I am all over the place in terms of tones as my pickup list in my signature suggests. I am just drawn all around, from jazzy and folky clean tones to classic rock and blues stuff to modern metal and such. The Holydiver for me is mainly seated in the classic to progressive metal area (Dream Theater and other proggy stuff), sharing some space with the Rebell Yell. Those two really complement each other well. Where the HD is warm, full and smooth the RY is screaming, punchy and more all out (more 80s hair metal).
If my RY axe was not HSH with extra wiring options I would put the 7 string with the HD and Emerald down as my most versatile rock and metal axe. Authentic classic 80s sounds plus modern stuff delivered with character.
Although BKPs are crazy versatile pickups I like to have this amount of axes (more coming in the future) so that each one covers a specific sound and feel, a sweetspot. That way I donīt have to stretch a guitar, but can if needed.