My prediction for PBA ball of the year (or, more accurately, the coming season) is the Storm IQ Tour.
'Round these parts, the house bowler ball of the year has to be the Track 508A. I see quite a few of these being thrown and mostly with pretty good success. From what I can see first-hand, the next contender for this would be the new Violent Eruption. This ball seems to roll great for any type of house bowler, and I am seeing quite a few of these being drilled up.