Ok, I’m back! Wow, I don’t care what the critics say, the new Harry Potter movie was good enough that I had to put down my knitting or have massive gauge issues!
But back to binding off…
The main reason I don’t automatically recommend one of the super stretchy or wrap the yarn an extra time around the needle bind off is because you mentioned a neckline. In my experience (not the most expert, manifestly), necklines are usually bound off in pattern, thus making it a little bit fiddly to deal with an extra loop. That might just be me, though. In the days of a very simple click of a circular needle change, and I do use addi needles, so YMMV, I think it’s so much easier just to change the needle and then bind off in pattern like you normally would.
However, you’ll probably find as many ways to do this and reasons why as there are knitters, and we all do it right, because there’s no wrong way in the end!