In Star Ocean 3, wind and lightning were the same thing. Kinda makes sense, seeing how both phenomena occur from the sky.
While they are phenomena that are sky oriented, you wouldn't call hail a lightning element would you? It's clearly ice, with wind. You wouldn't call a maelstorm part of the wind, right? It'd be water.
Anyway, point being, they should be separate. They effect separate things. Lightning can damage machines, wind would just batter them at best.
There's no reason we need to dumb ourselves down by picking only a trifecta that doesn't really even oppose one another, nor should we have to lump them together.
I HAVE A DREAM, WHERE LITTLE WIND BOYS AND LITTLE EARTH GIRLS CAN DRINK FROM THE FOUNTAIN OF RPGS FREELY WITH FIRE, ICE AND OTHER [parasitic bomb].