I've never heard this "so I says to Mabel" thing. I have heard "Mabel, Mabel, strong and able, get your elbows off the table." Anywho, I choose Frances, which I actually like. I think Mabel is heavy and depressing.
Oh man I've always heard it as "Mabel, Mabel, get your elbows off the table." I love that version much more and it makes me like Mabel even more as a name. -----------