I would take burning land because it is easier to hit, bit you can't move at all and you can't get an air multiplier for it. Mainly used as a ground hitter in PvP.
I'd take either sulfur rain, rapid railgun or burning land. Out of all, damage is best with sulfur, 2nd with burning land and worst with rapid railgun on ground enemies.
I wouldn't get burning land for stage compared to the other two though. Your choice.