Maybe this has been discussed. But the nature of Blue Magic is an imitation and mimicking of the enemy to use it's powers. Gau clearly is the real blue mage. But ya know why less people think so? 'cause you're all prejudiced! Just because he doesn't have a fancy robe and, instead, sports a man-thong does not mean he is not a blue mage. Why, he even gets status ailments because he mimics the enemy so blooming well! Now that's skill! That being said, I hated both of them, but i did rather enjoy that you could toss Gau on the veldt after acquiring him and forgetting about him! MWAHAHAHA. You could even beat on him. Finally a character you could take your rage out against!