It all depends really...
As you can see on the PBA; Storm and Roto Grip dominate play, closely followed by Brunswick (some argue Ebonite International). Like all ball companys, some Storm/Roto balls weren't the best; but some are outright performers. Example of this is: Virtual Gravity, Hyroad, Hyroad Pearl, IQ Tour Pearl, Hypercell, Uproar, Cell.
Dv8 seem to hook a lot for the lower rev bowler; which can be good aswell as bad. Thats my only experience with Dv8.
What storm products are you currently throwing? and what did you throw before that?