We recently replaced all the doors and windows and had the same dilemma. Wood or plastic. True, more expensive, but eventually it became wood. Because both are well-insulated, durable and aesthetic, wood has become the winner for safety. Several houses in the village were broken into by simply heating up or drilling out the plastic patio door in the right place and then tightening the multi-point lock with a simple screwdriver. This is much more difficult to do than wood.