Hi there, I'll just chime in for a tiny bit here and toot my horn.
I'd tell you that whichever location is closest, offers the best quality, and best reviews would be your best bet.
You of course already know this, but it is imperative you are completely trusting and dedicated to your surgeon.
Go ahead and make sure your lodging during your stay is sorted out, compare it with different places, get with some girls who have gone to them.
Make sure you prospective surgeons have a very clear and up to date portfolio of their work they can present to you.
You are going to want to see first hand what they can do, their before and after.
Ask about their complication rates with their techniques.
Sinus complications on forehead work can happen even with the best and you want to avoid it as much as possible, if you're considering that.
Make sure they can offer you all their valid credentials, the more the better, make them convince you they can do what you need to.
If there is a lack of confidence on their part or unsatisfactory information, red flags, move on.
I'd recommend a curriculum vitae to pour over to see what they've dabbled in and accomplished or are currently leading in.
I personally went to Dr. Zukowski and I could and would go on and on about him, but this is about you and not me!
Much love and keep us updated.
Keep your standards high.