The Motiv Sigma Sting is on closeout. It is an awesome pearl benchmark ball that is versatile on many conditions. Other options for pearls would be the Roto Grip Unhinged, Storm Hy-Road Pearl, and the 900 Global All Night.
Even though these are general suggestions, I always recommend working with a good pro shop who will watch you bowl some frames. This way, they can really match you up with what will truly be best for your game.