I like to use the serpentine, an easy curve back and forth.

I make receiving blankets for baby shower gifts using two yards of flannel, I use decorative stitches around the outside edge in a matching thread it just makes for something a little different.

I usually use just a plain zigzag. I like to have some width to the stitch so I make sure that I catch the fabric on the underside if it should fall a little short.

I often use a decorative stitch on a baby or child's quilt for durability. When I do I like a serpentine or some stitch with some movement as it can camoflage any deviation from trying to get a real straight stitch when binding. If I use too much of a decorative stitch, it gets stiff and I don't care for that. Just my opinion - again, no quilt police here so do what works for you.

I've used the buttonhole stitch quite successfully. Works better when you pull the backing around to the front and stitch. Or at least it does for me. I've also used the one that takes 2-3 stitches straight then zigs to the left/right sorta like an invisible hem.

I have an "s" shaped stitch on the old Bernina 730 Record that I will try the next time on a project. It looks interesting and goes back and forth so hope to catch all of the fabric.

I have used a vine or "leaf" like decorative stitch on my Janome

I usually use the rick rack stitch that is on most Brother machines

I have a Y stitch on my ELNA, got to center the Y to look good like a vine.