Looking to get a new ball.  Currently using a Hammer Raw Toxic.  It's not my favorite ball, but works decent on some shots.  I'm looking for a ball that will go pretty long, then have an aggressive turn to the pocket on the back end.  Not skid/flip, but strong arc.  I'm medium speed, decent amount of hand.  Here is what I'm looking at:

Storm Virtual Gravity
Roto Grip Mutant Cell
Morich LevRG
900 Global Bounty Hunter

What would my best bet be?