You really cannot go wrong with either. Jeff is correct though, it is really going to depend on the kind of reaction you are looking for. Do you want a stronger read in the midlane or do you want a stronger backend reaction?
If the Crunch Time is the ball you are currently using and the oil is just getting a little too heavy for that ball, then the Unleashed may be the better choice for you. However, if your ball speed is that high more than likely you will need the stronger roll in the midlane. I would suggest going with the Animal. Use it with the surface in factory condition and if that is not enough, have your proshop lightly sand it down.
NOTE: This is a generic post, primarily because we do not have enough info on your game. So this is post is using just general thought.
goodluck
-EX-
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C-G Pro Shop