Thank goodness I've done this before because the OB has never even had a conversation with me about diet, weight gain goals, milestones, etc...Not one.
FWIW, I love my OB and he never had any of these conversations with me. If I had a question, I asked him or his nurse, but I learned pretty much everything I needed to know from books and online sources. He is very laid back and only brings up problems if they actually become problems.
If you aren't comfortable with this OB, check out the other one and then make a decision.
Same here. We've never had a conversation about any of those things. She always asks me if I have questions, and I can never think of anything. I did have some good conversations with my OB about attempting a vbac when I was pg with DD2. The other stuff really isn't that important. I asked my OB once about weight gain, and she just told me that the more you gain while pg, the more you have to lose later. (Granted, all my vitals are always fine, low blood pressure, not gestational diabetes, etc.)
I don't think it could hurt to meet with the other OB and see if you have a better connection with her.