On another note of those you listed, Ultima HM I thought would be the hardest amongst Ifrit, Titan, and Garuda... in my run I thought it was easy. Then again as DPS I just had to run around making sure I took as little damage as possible while exploding orbs and taking down magitek bits. The only thing I know for this fight for tanks is that they need to swap because Ultima stacks something on them.
