Who would you gonna pick? Well for me, I would prefer to choose Layla, aside from it is being used for the tutorial introduction, it is easy to master. I always use the durable gear set and physical set. But now I am using the fighter emblem set since I already reached the level 20. The only disadvantage for her is she don't have an escape skill that Miya has so you can use sprint or teleportation. They can do both jungling even you don't use gear set for jungling.