What is the best level 70 World of Warcraft weapon

In World of Warcraft, Legendary quality weapons (colored orange) are usually the best weapons to gain for that expansion. However, such weapons are usually restricted by class.

The level 70 legendary weapons are the Twinblades of Azzinoth (Swords usable by Rogues and Warriors) and Thori'dal, the Star's Fury (A bow, therefore usable by Hunters, Rogues and Warriors).

If you are a spellcaster, the best weapons would be those dropped by Kil'jaeden, namely Sunflare (dagger), Hammer of Sanctification (mace) or the Golden Staff of the Sindo'rei (staff).

Crux of the Apocalypse (dagger) and Hand of the Deceiver (fist) appeal to Rogues and Enhancement Shamans.

Apolyon the Soulrender is a 2-handed sword and appeals to Paladins, Death Knights and Warriors.

Note that a lot of these weapons were made with level 70 characters of their respective talents in mind; since TBC a lot has changed, and what once was a very desirable weapon to an Enhancement Shaman (for instance) might not longer be so.