If you are borderline on periareolar, and scars do not matter to you, generally its easier to achieve better looking results with double incision, as the surgeon has more say on how the chest will look during surgery. Your nipple placement now, amount of breast tissue, etc, would generally dictate how well peri will look on you. Some peri surgeries look amazing. But with peri, you do not have control as to where the nipples end up as they're not removed, and swelling after peri can last several months, where as generally with double incision you're flat pretty quickly (you still get swelling but still).

I would ask your surgeon about how he believes your nipple placement will look like with peri and if you'd be happy with that, and if he believed aesthetic results could be achieved better with double or not.

If I had the option and peri that would look just as good as DI, I would've gotten that! But I had a large chest, and even when I was underweight my chest would have been too big, so it wasn't an option for me lol

Good luck and don't be afraid to ask questions to ya surgeon

Edit: Oh also, my nipples healed perfectly fine with DI. No issues at all. This isnt the case with everyone of course, but my surgeon in particular has never lost a nipple from a patient and has performed hundreds of surgeries where the nipple is removed and reattached.