Go bias all the way as it's difficult to add binding while you've got a lot of it stitched on the quilt already; I've tried this, it's a pain in the toukas, not worth the effort.
I have my own directions for making bias binding in an easier (at least to me) way, if you want I can send them to you. Send your email address to
terificreations@gmail.com and I'll get them off to you quickly.
happy quilting,
teri