There are quite a few different things between Egis and Demis. For a start, Egis don't ever start attacking until the SMN does or until you command them to do so, this makes min maxing SMN with egis fairly tedious. Against bosses that jump a lot or that move a lot the Egis spend quite a lot of time running from one place to another, that honestly sucks too. Then you have certain Egi actions that get cancelled or that ghost. How Enkindle is still an OGCD is beyond me. Devotion is useless bloat.

The Demis are a lot better. They attack each time you perform an action, their visuals are a lot cooler, they don't care about bosses moving and they don't stick to target 1 when you've just switched to target 2 (*cough Egis *cough*). Egis damage is so laughable too at this point you can't even compare it to DoWs autoattacks, it can't even be qualified as a glorified DoT because you'd need to compare it to a 20 potency DoT which I don't believe even exists?

I would most definitely sign for an only Demi rotation at level 90 in the next expansion. Egis are overstaying for me at this point.