As noted in Starting Strength: Basic Barbell Training, the bench is "the most dangerous exercise in the world" and in the U.S. every year, "an average of eleven people are killed while training with weights, essentially all of them under the bench press" (p. 153-154).
Few on this board would recommend anything other than (1) benching in the rack with the pins set above the level of your face or (2) using a spotter. Personally, benching is just not important enough to me to do outside the rack--I don't plan to drop even 65 lbs. on my face, but I prefer to have the pins protect against that possibility, however unlikely.