I like wonder clips for bindings. Now let me say that bindings are something I struggle with. Yesterday I did one. I pressed the binding after I sewed one side, then added wonder clips and it finished quite well.
My specific problem with bindings is that sewing the first side goes fine, but when I do the other side the stitches never line up with the side I just finished. That's why I usually sew the front first and then hand sew the back.
I may just start a thread on this. I'm sure someone can help!