Yeah, if you want strength you should try a powerlifting workout. I trained as a powerlifter for awhile (I wanted to learn how to squat right and I love deads), and my coach would start out with sets of 6 on flat bench for 4 weeks, then drop to sets of 4 for 4 weeks, then drop to sets of 2 for 4 weeks, then cycle back up to sets of 6. He mainly had me do flat bench, and maybe a little assistance work - either dips or incline bench.
I gained a lot of strength on this type of workout - I've never come close to that strength since. Unfortunately, I don't have a spotter and that coach retired, so I quit pushing my limits on chest work.