For the Ifrit, it's gotta be the DT Kick 13. That move made me feel like a boss. However, Inferno is really close. I only pick Kick 13 above Inferno because of the awesome sound effects when pummeling an enemy.
WHY SO SERIOUS!? O_o LET'S PUT A SMILE ON THAT FACE!!! >=] PSN: SHIN_MEGIDDO_X http://www.youtube.com/watch?v=lQi0Mv7kK_E