I have both, but not many games yet, and each was used under different conditions.
The Anger (and mine is polished) grabs earlier than the Bite, but it's a strong arc, versus a longer skid/flip reaction from the Bite. So far my Anger has been used on light to medium/heavy oil, the Bite on Medium to medium/heavy oil. I think it would depend on the other balls in your arsenal (that you've brought to the lanes) and on the oil pattern/volume you run into most of the time, which would fit best.
Despite the lack of games, I already feel the Anger is more versatile, but the Bite more explosive. My league average is in the low 200's and so far I've bowled several games (including practice) with the Anger and most scores were between 190 and 220 regardless of the lane condition. With the Bite on lighter oil I had to fight to get it far enough down the lane to hit the pocket and best game was a 205, with a few lucky breaks. On medium to medium-heavy oil, it was fantastic. Not only a decent score (255), but almost every strike was a solid hit.
To me....so far it seems that the Bite will be a more condition specific ball than the Anger. Depending on the mix of your current arsenal of balls, you may be more interested in the Anger (a ball that would be effective on several oil conditions) or the Bite (a ball you could pull out of your bag when you encounter an medium-heavy or heavy oil pattern that is keeping your other equipment from reacting).
Hope that helps a little.
