I think 165 lbs sounds great. I'm like you, 5'7", shoulders like a linebacker, huge muscular thighs and calves. I've always been "stockier" than other girls. (I have biceps bigger than a lot of men) I'm going for 150 lbs as my goal, but even 175 lbs would be nice.

I hover between 5'7" and 5'8" (mornings I tend to be taller), and I'm going for anywhere between 115-128ish. Sounds really really low but it was recommended to me, plus I am definitely pear shaped. Very small on top, and very big on the bottom. I was around 135 in December-January (stupid holidays ), and I couldn't tell any difference between that and where I am now (about 10lb heavier), so I figure the low 120s will be just right.

It's more trial and error, as everyone is built differently and everyone looks different at a certain weight. Someone who is 5'8" and 165lb could look heavy. Someone else who weighs that could look perfectly toned and healthy. I say go for your goal of 165, and if you like where you are, there you go. If not, just lower it by about 10lb.

Short answer: don't compare yourself to others. Do what works for you.

You asked, "will I be healthy at 165ish?" Well, that depends on a lot of things. The number on the scale is not a reflection of health. You could possibly get down to 135 and not be healthy. It's more a matter of how you're losing the weight (the types of foods you eat, the amount of water you drink, the exercises you do, etc.) that will determine your health. Some people your height may not look good at 165 because they don't have good muscle tone, while others may look like superstars. Then again, you could still be all flabby and gross even at 130 if you don't exercise. There are LOTS of factors at work here.