Cool, thanks Aeyela been forever and I wasn't sure which would be more beneficial -wind or -earth.
Wind for the Aerogas and stuff. From past times fighting him they're the most dangerous thing to a NIN. You really need to keep stun for TP moves so I usually let the magic hit me. I've only fought him on NIN three times, however, and we wiped once because I got hit by Disgorge. It's so much easier on SMN it's almost a joke, can kill him with Garuda without a single resummon!