Thought id throw my hat in the ring:
59 Demon Hunter
Main - Hungering arrow - Devouring Arrow
Second - Charkam - Dual Chakram
1 - Rain of Vengeance - Dark Cloud
2 - Spike Trap - scatter
3 - Smoke screen - lingering fog
4 - Companion - Bat companion
Passive - Vengenace, Sharpshooter, Archery
Alrite, so first and foremost, the one thing that i havent seen a single other demon hunter use is smoke screen, and i think i understand why, its because the tooltip is incorrect. Not only will enemys not attack you, it makes you invulnerable as well as break any movement impairing effects(slow, freeze, stun, etc), so say you are fighting the butcher, and are gonna get caught in fire or are grappled by his chain, just pop smoke screen and all damage is negated. This has been the saving grace for me as a demon hunter.
Secondly, spike trap is ungodly powerful, and with scatter you will place three in a spread out row at a time which is great for large mobs to turn into a fine pink mist. However, when fighting harder enemies, the trick is to fight in doorways or stairs. Since the traps cant spread out, they layer on top of each other. For me each trap does about 12k on hit, 24 on crit, so imagine dealing anywhere between 36-72k damage in a single hit, oh my god enemies just melt away.
The bat is just there for extra regen.
Rain of vengeance is an essential aoe ability, other than its cooldown there is no cost, i use the dark cloud ability because it targets individual units, which i find works better if your fighting a boss or other large individual unit instead of a group of units, but it is still effective against a group.
Lastly dual chakrams i use because it can just cause tons of damage to enemies pouring out at you, or at the very least on a hit you get the full 100% damage, but on a good hit against say a boss, easily 400% damage.
Passive abilities - vengenace to increase my hatred, i use a crossbow, so archery gives me an additional 50% crit damage, and sharpshooter gives me extremly high crit ratings
Overall, i like the demon hunter, i can dish out damage like noone else, and smoke screen keeps me alive while doing it.