Quote Originally Posted by KyrsIsley View Post
Quick testing by Stan shows that there are no difference in enmity generated by different damage sources.

Another theory (although a bit far fetched) is that the something in Thunder combo may have built-in hate component resulting in higher threat generated by THM using this combo during Ifrit. Since Thundara does have a stun component, perhaps this component is generating the additional hate regardless of its activation/landing on the target? Just a thought, will find time to test this theory later unless someone else already tested it.
Maybe also Crit Hit grants a bonus to enmity as well, besides the obvious higher dmg amount. With high dmg and having a crit bonus could add to some serious enmity.