That depends on who's using the stick. Give a beer league player a top-end composite stick and then give Sydney Crosby a $25 wood stick, who do you think would have the harder shot?
Ultimately, the point and design of composite sticks is to manipulate the kick-point (where the shaft bends when taking a shot) to its lowest possible position on the shaft. The thinking is that the lower the kick-point, the harder the shot, the more accurate the shot, and the faster the release.
Wood sticks have a mid kick-point (middle of the shaft). High-end composite sticks have the lowest kick-point while mid-level and price-point composite sticks have higher kick-points (but lower than a wood stick).