cloud, cid and yuffie.....
i uses mainly cloud's omnislash and cid's highwind... i didn't use yuffie's coz it just did minimal damage.. i only uses her as a "healer", throwing megalixir and hero drink occasionally, and skipping her turn if everyone is in good health.. the key is u have to keep everyone in maximum health... and just skip their turn until they've got their limit break.. and did u know that limit break got the highest priority?? which means that limit break will be executed 1st.....