JMO, but I'd get both, but I'd definitely concentrate on the S&H first. You will burn more calories with S&H, since building muscle increases your metabolism. Also, since you are pear-shaped, you really do want to bulk up in your upper body a bit, so that you attain a better proportion. JMO, though.
I'd skip S&H for your legs, though, if you are heavy in the thigh area, and if you might tend to get discouraged easily. True, you will burn more calories, but you'll also go through a "bulky" stage for a few weeks. Most girls I've known w/that shape, tend to get discouraged w/that phase (they think they are getting too muscular, but that's not the case), and then they quit.
But, if you stick through the "bulky stage", you will lean out. The bulk occurs because you will build muscle at a faster pace than your body can burn off the fat. So, you have a compound layer of fat + increased muscle mass. Once your metabolism revvs up, the fat-buring rate will increase, and your legs will de-bulk. The key is to skick with it, and not give up.
If you rather not endure that "bulk phase", just do a higher rep/lower wt type excercise for lower body. You won't burn up as many calories, but you won't have to deal with the "bulky leg" stage either. If it were I, I'd opt to train my entire body S&H, and deal with the bulky leg stage for a while, knowing the end result will be better eventually.
Once you begin to burn fat, and see your legs slim down, you can then switch to the high rep/lower wt leg work. The girls who have stuck with that type w/o all the way through, always rave about it being very worth it.
And most of all, I think pear shapes tend to really benefit from cardio workouts, 5-6 dys per week.
Again, this is just my opinion, based on what I've seen in friends/family and girls at the gym. It may not work for everyone? I don't know.
