Heck of a question on this thread - LOL RotoGrip, Storm, and Brunswick in that order.
Used to be a Hammerhead but haven't had much luck with the new stuff made under the Hammer label by Ebonite. I do like the V2 core products from Ebonite.
I suspect I would like the Lane Masters top of the line balls but they are too expensive for me. Taking the shell all the way down to the core has some theoretical advantages in hitting power. Witness the old Hammer balls made by Faball and the carry they produced. The shell stock is more expensive than filler though so this is not the cheap way to make a ball and some compromises may have to be made in core weight.