My pecs are very well developed, which I attribute to my workout. I never do regular bench press. Ever. I only do dumbbell presses and dumbbell flies, and I do them both on incline, decline, and flat benches. I also do many other pec exercises (but, again, no bench pressing). If I had to only choose six things to do, though, I'd do the dumbbell presses and dumbbell flies on each of the three benches. I do very high reps (at least 15 reps per set) and I do five sets for each lift on each bench.

So, my opinion -- Stop the bench press, and do dumbbell presses and dumbbell flies both, and do them on the three different benches. Or, if you like the bench press and think it's helpful, then do both dumbbell presses and flies and hit them at the different angles.

Edit -- I wish I could challenge all of you down-voters to a strength contest, to a body-fat percentage contest, and to some kind of context that measured and compared muscle development and vascularity.

Edit -- OP, ignore the down-votes. If developed pecs are your highest priority, focus on the dumbbell presses and flies. Do the bench press too, if you like it and if you have time. But, even if you like it, it's the one of the three to drop if your focus is building an developing pecs. To me, bench pressing is totally useless. And, as I watch people bench pressing at the gym every single day, I can see that it's totally useless to them too. The vast majority of people have terrible bench-pressing form. And most of them have terribly undeveloped pecs. And most of them aren't strong. They think they can bench-press their way into big pecs. Maybe, but only a few of them and only after a very long time. If you want very high-quality pecs, you should focus on the dumbbell presses and flies.