I don't get it. The whole point was that he needs the Black Materia to summon Meteor to deal enough damage to the planet so that he can gain power. Now, he has a limit that can disintegrate planets, but only do 3k-4k dmg to the party. I do not buy Supernova as a good limit, good looking though.

As for my favorite, Barret's Satellite Beam is the best looking. Many of his limits are mostly for show if you are using them only on one enemy, but hey, Barret is just that kind of dude.