Wow,I used to think I was some kinda freak or I was doing something wrong,but it seems individual biomechanics and genetics count for something here.
I always feel bench presses work my shoulders and arms more,regardless of angle.
Flyes with cables or dumbells don’t seem to do it for me,despite experimenting with tempo,sets,reps,negatives,maximal contraction,etc.
I have experimented with so many different chest exercises because it appears to be my weakest link.
I noticed strength gains with many but not major size gains.
With regards to size,the three that seem to really stimulate the pecs and give me size and a ‘pump’ are-
Swiss ball push ups (feet raised on a bench,doing push ups with both hands on the ball)
Plyometric push ups (explosively pushing up from the floor,clap hands together,then control the catch,lower and repeat)
Spiderman push ups (feet raised on bench,bring one knee up to touch elbow on same side as you lower,then return and alternate.MUST BE CONTROLLED)
The pump I get with the spiderman push ups is better than any other exercise I have ever tried for my chest.seriously-I think they are very underrated and after trying them out a few times,was surprised they don’t ‘get around much’_
I mean I have only seen them in two articles/books everone was in Men’s Health magazine,one was on T-Nation-and even that one was about different types of push ups! I get a real pump on my shoulders too(really hits the shoulders,due to increased range of motion) both of which last for days.If you find it too easy,go a bit slower.