Nightmare Mount Drop Rate higher on Ifrit-EX ?

[Avatre]

I think Ifrit does drop the nightmare more often than the others. Fortunately Ifrit is the easiest fight.

I will have to strongly disagree with you on that. Ifrit you still have to watch out, and stop DPS at certain points due to the nails auto-wipe point. Garuda, even if you drop her below the amount when the adds spawn, you can massacre her and only those that aren't level 70 in the unsynced group won't survive(tanks lower than 70 mostly survive too).