To add to this thread I also agree that Levi would have made an excellent choice to add to this mix...
Personally Carbuncle would have made my day.
I am curious about if I should level all of my Aeons equally (so far I have focused on my favorites, Shiva, Ifrit and Bahamut) I was working on Valefor for a while but I started to wonder if it would be a waste since he seems a little weaker than the other summons, until I noticed someone mentioning his evasion being high/good for building overdrive...
Does anyone else have preferences on which Aeons to focus on?