Athena IV Question

So I have a few Athenas, all with really good IV's. Currently I have a 5 star that's +Atk -HP, a 4 star with +Spd -HP, and another 4 star with +Spd -Res. I'm honestly not sure which one I should use since all their IV's are really good. What do you guys think? Is +Atk or +Spd better? If Spd, then is -HP or -Res better? Let me know which IV set you think is better.