Now there is already a degree of common knowledge for monsters. Firstly always target the medic first and always down the down the trapper when stuck in dome. Now who you should target changes from game to game and monster to monster. So from my time in the alpha and watched the streams and videos this is my list of which Hunters should be prioritized. Feel free to comment and disagree. Also I am only mentioning the first 8 Hunters since most of us have not played or hunted Tier 3.
Note I put Assault at the bottom since most monsters I see focus the other hunters first. I will rearrange based on community feedback. Also I will add opinions on the rankings later.