hooks are suppose to be the part that sells your song, so i would try to make the hook bigger musically as well as vocally.
i would add another track to the hook but in a diffrent note.
and add a little touches musically to the hook so it stands out.
check out my myspace page and you can hear tracks that ive produced and vocal coached.
except the M.O.P. remix i can't take any credit those vocals.