I love doing the binding. I never cut it narrower than 2.5 inches, and I like 3.5" even better. Doubled, I machine stitch it to the front, and have a generous amount to turn over. The wider binding looks lush to me, and it's very easy to work with. Also, I cut on the crosswise grain, just like other strips. IMHO, There is no reason do do bias binding unless you have a curved edge.