I thought the sticks were used to be made of wood, and now are made of graphite?http://en.wikipedia.org/wiki/Ice_hockey_stick
Graphite (carbon fiber)
Graphite has become by far the most popular building material for sticks used in the NHL, and it is growing rapidly in popularity for amateur and recreational players. Carbon fiber sticks were originally sold as shafts alone, much like their aluminium counterparts. "One piece" sticks, which consist of a single piece shaft and blade, have become the predominant type.
Carbon fiber sticks have become so popular due primarily to the way they combine features of wooden and aluminium sticks. They offer the classic "feel" and performance of the best wooden varieties, and the manufacturing consistency and precision of aluminium sticks. They can also be manufactured with extraordinarily precise "flex patterns" which can aid in the power and accuracy of wrist and snap shots, and their manufacturing process makes it extremely simple to add any number of different materials and features which can dramatically change the properties of the stick (a good example of this being the silicon injections made in certain high-end sticks that are claimed to further enhance their "feel").
Their main disadvantage is their high cost coupled with their relatively poor durability. While their average life is not quite as short as their wooden counterparts, it is poor enough that competitive senior players will usually break one every week or two, which for an entire team over the course of a season can become extremely expensive. This can be a particularly nasty burden for "nonprofit" competitive teams (such as college hockey teams in the United States), some of whom have begun restricting their players from using the most expensive composite sticks.
so in terms of durability: Wood > Graphite