Firestorm Still the Best to Level With?

I wanted to make a RF Trickster.

Is Firestorm with Lifesprigs still the best and most efficient way to level?

Is Freezing Pulse better with the new jewels?

Anything else that should be on my radar? I'd like to try something different.

people are using fire trap + freezing pulse for leveling
then pick BV at lv 12
Then pick your skill of choice at lv 28