Hmm I'mm level 49 mage class. I'm botting in Elluman or Bubo.
This too are hard because monster can hit you even if you are freeze in air but bubobubo for example give me 5118 exp per monster, and there are 12 monster, Elluman's monsters give me 4000 or 2000 but they have less HP.
To conclude you've to know Sambaba's (chef rocker's) respawn will give you a corrct amount of exp and mobs have very low amount of HP. It's a good place to bot until lvl 50+ ;)
Hope it'll help you