I do rest between sets. To build muscle you have to have at least a 60 second rest betw. sets. I'll do 3 sets 10 military presses. I superset the side & front raises, but I'll do one set each & then rest (I have some problems w/this from hands cramping).
Yes, the incline raises are the posterior flies--I usually to them seated at the end of a bench leaning over (you know, the position people tell you to get in when you feel like you're gonna pass out? Or on a plane before it's gonna crash?

). So the weights start under my thighs. I don't like lying face down on a bench, I feel just a little too vulnerable in that position. Cathe does the rear squeezes in Drill Max on a stability ball. I do them on an incline bench w/much heavier weights. So I superset these two also, do one set of each & then rest before the next set.
With my leg/chest routine, my extra rear delt sets are usually done on the pec deck & the incline flies. I usually superset my chest flies on the pec deck w/the rear delt flies, & then do 3 sets incline flies right before I leave the gym.
You know, I used to be so obsessive about abs but since they're also worked with so many other exercises (squats, lunges, tricep pushdowns, bicep cable curls--almost anything that's a balance challenge) I don't worry so much if I miss one of my two ab workouts. For me good abs are more about diet than exercise.