Warrior Stiffi or STX Proton Power?

Ive played lacrosse for 7 years and the proton power is an offensive head from top to bottom. Its very pinched and light bad to put on a long pole because of how pinched it is. The stiffi is made to play defense with it is the stiffest head there is. it's is not pinched, it's very wide up top and wont bend during a poke or slap.