i always liked to do shoulders/chest together. for me, i've made the most progress doing so.
however, i have a hypothesis. that is that if you have more endurance fibers, you have to stimulate your muscles not only by high weights, but also from multiple sets to really beat your system down. if you have less endurance fibers (endomorphs), this will do more harm than good.
my first 4 exercises for chest/shoulder day - i picture someone wincing at this, is :
bench
military press
incline bench
front delt raises
4 sets, 4 exercises, 12-15 minutes. i don't think most lifters would benefit from high volume though. if you're an ecto, this might make a huge difference in your gains. GVT would also be a program designed for ecto's, though all other body types overtrain within 2-3 months - unless you're taking something.