Hey o/
So I just started playing and I have no idea what hunters I should focus on.
I tried to research but the more I read the more confused I get ahah..
Currently I have:
» 3* - Karl, Chichi, Kain, Juno, Nene, Athena, Dino, Gullveig, Crocus, Joy, Hermes, Lantern, Therapy.
» 2* - Mowgli, Scar, Rebecca, Gerard, Riko, Teddy Bomber, Levi, Acerola, Denali
» 1* - Balian, Sylvester, Lapis, Captain, Robin, Hecate, Locke, Metis, Sienna, Bruce, Tyltyl.
I would apreciate if u guys could help me! Thanks ^-^
Late Post : Harley's Mask off
Surprisingly low block chance
DeusEx87 
Natara 
papapou 
jarnMod
Right now you should focus on leveling up your team, grinding through story levels.
To successfully do it now, you won't need particular hunters. Anyone will be good.
But if you are planning to go on playing, you should consider following certain tips.
1) a balanced team for story should be composed by 1 attacker, 2 bombers and 1 healer.
2) you ideally want to have an attacker for each element (fire, ele and ice)
3) you will, for sure, have a hunter that you like more than the others. But, if possible, follow this rule when it comes to advance:
First advance attackers, then bombers, then healers. Tanks as last.
4) never, Never, NEVER use natural 3* as fodders. Keep them, you may need them later for FC or for certain team compositions. (Remember to lock them so you won't accidentally delete them).
Now, you have a lot of natural 3*. So I'd suggest you to use them to create your team.
Get Hermes as fire attacker and Karl as ele attacker, level them up and use them when needed to get elemental bonus while fighting.
You will probably change them later for Heidi and Bibi, or maybe not... it's up to you. Wait for Becken or Yuri for the role of ice attacker.
Since you don't have Diana, Gullveig can be a decent substitute giving speed buff and preventing enemy to attack for a short time (after the next patch she will be even stronger than now). Lantern can send nice punches with his 4th skill (really high dmg) and lower def, so I'd say stick to him as second bomber.
Healer, you can choose between single target single heal (crocus, therapy), or single target healing over time (joy).
Crocus can deal massive damage with her 4th skill. She is like a bomber/healer hybrid, but you need to advance her at least to 4*. Therapy is interesting and more of a support, temporary increasing teams statistics and deleting harmful effects.
Joy is a pure healer. Her 4th skill can give huge healings, but as said previously, you need to advance her to 4* as well to unlock that feature.
I'd say stick with Joy for now, but train therapy and crocus as well.
And train Dino, you might need him for FC!
Ok, just basic stuff, and probably other players will add some other useful info.
Have fun playing and good luck :D