A lot of this answer depends on what you're trying to get out of each. The Aeropro will definitely give you more power than the Pure Storm, but at the expense of some control. A big issue in your choice is if you plan to continue with your current style as a defensive baseliner.

If you feel like you're continuing to grow; I'd opt for the Storm because the feel is so much better. My son just turned 16 & he's sponsored by Babolat. He loves the Pure Storm Tour + (.5 inch longer), but he's a very aggressive all courter with strong volleys.

Ultimately, no advice is as good as taking out both frames to demo them. Make sure you play matches & not just ball machine work. It's much more realistic that way.

Good luck!!!