You ALWAYS keep Trueaim, Far Watch Post and Annoy-o-tron. Unless you are playing against priest, in which case you can really take whatever and just hold and play responsive instead of aggressive until you know you can overrun them
I have been working on ways to combine Spiteful Summoner and Guardian Animals into the same Hunter list for quite some time now (since GA was nerfed, because it actually got slightly BUFFED when paired with Spiteful. The early game is constructed so that you have the highest possible chance of surviving in good condition going into turn 6 and beyond, and also in such a way that you have removal tools in the mid and end game if you draw them later. Trueaim Crescent is a superstar in this list because it allows your watch posts to attack minions, and because of that they will likely stay in the list post nerf (as long their text does not change). Ace Hunter Kreen is another superstar here when it comes to maintaining early board presence. Kazakus slots in nicely here and provides you with offense or defense when needed, and can even provide draw. I think the end game is pretty self explanatory, play your 6, 8, and 10 drops till you cheat out enough big minions to win! Has a 65% WR through 40 games so far btw, in case winning means more to you than having fun. Enjoy!