Choosing Bloodlines as Ifrit Sorcerer

Hey everyone, im building a Sorcerer for our Mummys Mask campaign right now and i could need some advice for choosing my Bloodlines. Id like to play an Ifrit as a Fire Sorcerer. My final stats are: STR 7, DEX 16, CON 12, INT 12, WIS 12, CHA 18 Shall i rather pick Wildblooded (Primal) with the Elemental (Fire) Bloodline or the Elemental (Fire) with the Efreeti Bloodline? Id love to throw mighty Fireballs, do some single-target Damage with the Fire Elemental and im still a beginner in Pathfinder.

Thx for your advice <3