Well, depends on the skills yes, and also the amount of energy and how fast it charges. For like for example: Second wind> Every Strength added, the healing amount will raise a certain percentage, you get stronger healing. Like that etc.
But I put on loads of magic and vit cause it gives you more energy amount, and the magic assists your energy loading rate to go a bit faster.
Vitality: Enables for energy for your genie.
Dexerity: With a certain move as in Holypath, with increase the rates in 0.1 seconds//Also helps with other skills.
Strength: Similar to Dexerity, but with different skills.
Magic: Each magic points added, increases the energy reloading speed.
So it depends on you.
If you need anymore questions just ask. xD
Subject: Genies.... 
