If going EBI, you'd probably be best off with the Warrior Elite.  The original Paradox is also another option you can consider.  If you're looking to try brands outside of EBI, the Motiv Jackal Carnage is coming out next month and is a very strong solid with a proven low RG asymmetrical core.  Also, other balls such as the Radical Guru Supreme, Brunswick Nirvana, Roto Grip Hyper Cell/Menace, and the new Storm Alpha Crux are balls that can be considered.