My decision always varies with the quilt.

I cut my binding 2.5", fold in half, and use a 3/8" seam.

I always cut 2-3/4" W.O.F., fold in half, press, stitch with a 3/8" seam allowance when I sew it onto the quilt top. I give a gentle even pull, as I sew it and I always go around curves at the corners, lays very nice.

I use 2 1/2 in. It shows "just enough".

I prefer to bring the backing around to the front and stitch it down. It seems like it is neater to me.

I must be living on the moon. I always do 4 " and folds them in half. I thought it was for wear. I well I learned a lot tonight. Thanks.

You place the quilt front and the quilt back right sides together and sew all around leaving an opening where you turn the quilt right side out. I do not leave an opening at the edge of the quilt for turning, but I make an opening at the location where my sleeve will cover the slit. I hand stitch the opening closed even though the sleeve will conceal it.

I hsve some quilts my grandmother made in the 1940's and one in the early sixty's. There is no binding at all. The top and bottom are both cut equally and then ironed in 1/4" and then slip stitched or something so they look very nice.

I have not attempted that and only use 2 1/2" binding. I have Lyme arthritis very badly and just cannot use the 2 1/4" as it is just too narrow for me and I cannot keep a hold of it while I try to sew.
Lynne Plotner-Pierce Surprise, AZ

I almost always cut mine 2". that way the binding on the front and back sides of the quilt are the same. Judges like it that way, and they alsonb like the binding to be full, meaning that the fabric and batting go all the way to the folded edge.

Your method is the same as my method. Since there are no "Quilt Police", I assume anything goes. I do like the double binding method the best, though.