That sounds like a veteran's number from Eidolons only. The number that you should be looking at it are the Atk values of Hime from the main party menu. You are probably well above 40k, so you worst you went from 40k -> 39k Atk per Hime.
In which case, Hraes would probably be better as long as you can't get double Hanuman, but since you only have Hanuman, you'll always use her as your main. 100% is always 100%.