Which vile abomination from the Warp will survive the voting?
Listing the best chaos space marine chapters of the 40k universe (no loyalists!). Add items if you feel any are missing. Vote on your favorite chapters. Text and images from the awesome 40k Wiki.
http://www.ranker.com/list/the-best-warhammer-40k-chaos-space-marine-chapters/designergamergeek,
Iron Warriors
The Iron Warriors' specialty was the breaking of sieges and assaults on static fortifications, which made them great rivals of the Imperial Fists Legion, which was said to construct the greatest static defences in the Imperium. It was this rivalry between the Legions, and between their Primarchs Perturabo and the Imperial Fists' Rogal Dorn, that helped turn the Iron Warriors to Chaos.
Thousand Sons
The main feature that distinguishes the Thousand Sons from the other Traitor Legions is the sheer number of psyker mutations that have always existed amongst the Space Marines in this Legion. Every current member of the Legion possesses psychic abilities and they prefer to use Chaos Sorcerers and guile in combat, relying on their psychic powers and sorcerous knowledge to earn them victory.
Death Guard
The Death Guard are one of the Traitor Legions of Chaos Space Marines. They worship and devote themselves exclusively to the Chaos God Nurgle and as a result of his mutational "gifts" they have become Plague Marines; Astartes who are eternally rotting away within their Power Armour and infected with every known form of disease and decay but who are immune to all pain or minor injury.
Alpha Legion
The Alpha Legion is the Chaos Space Marine Traitor Legion about whom the least is known. They are experts in infiltration and their armies contain many Chaos Cultists in addition to regular Chaos Space Marines.
Night Lords
The Night Lords do not worship any of the four Chaos Gods individually, but acknowledge them equally in the form of Chaos Undivided as they ruthlessly spread terror and fear amongst the galaxy's inhabitants. The Night Lords are experts in the use of terror tactics to win battles and demoralise their foes before the main combat even begins.
Emperor's Children
The Emperor's Children are a Traitor Legion of Chaos Space Marines who devote themselves solely to the service of the Chaos God Slaanesh, the Prince of Pleasure. Emperor's Children Chaos Space Marines are known for possessing outlandish mutations and surgical alterations as "gifts" from Slaanesh designed to make them more "perfect" in the eyes of their twisted patron.
World Eaters
The World Eaters are the dedicated servants of the Blood God Khorne, the Chaos God of War and Murder, and live for nothing more than to spill blood in his name. The World Eaters' Primarch, Angron, was one of the first of the Space Marine Primarchs to join with the Warmaster Horus when he turned against the Emperor and began the Horus Heresy.