I prefer "Leona." But that's just me.
I also think it would be cute if Bones hyphenated her last name with her former husband's name, like: Leona McCoy-Henson. It speaks well and implies deep hurt and inability to let go of her failed marriage, which can only add to the ... to the ... the "texture" of this character. What's more, her daughter Joanna should be a highschool student, living with her father, who reports on her father's many flings. After reading such reports, we see Bones in her quarters, eating a tub of Neapolitan ice cream and watching the teley ... with a handy box of Kleenix, close at hand. In walks Jamie Kirk who, upon realization of the situation, sits by Bones and gives her a big hug and tells her what a beautiful and worthy woman she is ... as they begin joking about Mr. Henson's shortcomings. All that girly kind of shit that encourages slash and would never be able to fly in TOS, as we know it ... Oh, yes, "Leona" will work out fine. Just fine ...