[humblegunner]

if Sarah decides not to run

First name.

then Michelle seems to be a good choice

First name.

Hermain Cain isn't too bad either

Both names.

What seems to be the reason behind that?

[JosephSmithNAW]

No reason in particular. Now that you point it out I notice I used the full name of Michelle in the title. Perhaps a little bit of chaos theory might explain that one? :)

[Eaker]

Both names.

What seems to be the reason behind that?

Because Herman Munster might run too.