Ed's never faired too well with public votes, and Melvin (or anyone else who ends up as a bottom two shocker) will be saved over him. Lesley should be carried through by the Anton vote regardless of her Latin, and ditto Naga by the not-at-all-creepy female BBC Breakfast presenter vote. So yeah, I'd say Ed.
(I don't actually want to lose any of them, which is novel)