Ew.
Storm dominate wind
Storm dominate water.
When it comes to fire Storm got that lighting for that @$$. And than some.
Earth is utterly useless.
Metal bending is going to be an annoyance.
Blood bending doesn't stop Storm from accessing her powers.
As for Spirt bending , she's the Strongest Spirt there is and second to none to will power.
As for the Avatar state. Storm been slapping Omega's left and right since her inception and far more dangerous foes.
Korra sit down. Storm got more powers,more versatility, more defense, more onslaught, more stamina, more experience.