I didn't have room to put Jack/Doctor/Rose or Jack/Ianto/Tosh (actually, Jack/Ianto/practically anyone). I'm divided on whether I prefer Jack/Ten/Rose or Jack/Nine/Rose - slightly the latter, I guess. I also didn't have room for Mal/Simon/Inara, which I've never seen in fic but which I'd offer my firstborn for if I weren't already so far past the menopause.