In my opinion, druid (focus on magic) is better. Why? I need magic users in my party learn all elements magic.
Fire : Ryen and Kayelinth
Water & Ice : Chiyo
Lightning : Chiyo
Light : Mira & Trey
Darkness : Ryen & Vampire
Mirel can learn Wind if you choose sniper, Earth if you choose druid. But choosing sniper will reduce Mirel's magic attack. I need person with strong Earth magic to fight enemy boss with lightning elements. Remember lightning element weak against Earth and Wind, and only 2 fire bosses available at fire/thunder raid, so if developer add lightning boss in future update, my preparation is already done and take Mirel to fight lightning boss. Who knows? :)
Druid path can learn HP and TP regenerate. It's better for me than Sniper path. That's just my opinion.