It is inarguable that the new Argent Tournament faction gives the best WoW dailies currently available in the game. This is not a hard conclusion to come to for the following reasons:

1. The Argent tournament dailies offer the most gold per hour out of all of the roster of daily quests. Due to the flight time required in finishing all of the other dailies, Argent Tournament is the best gold per hour ratio, aside from maybe a few of the Northrend fishing dailies.

2. You are able to get high level weapons and armor with the tokens and faction gained from finishing the Argent Tournament dailies. Other daily quests only reward you with reputation for the old Northrend factions, which do not have items on par with Argent Tournament.

3. They are the quickest WoW dailies to complete. This is simply not open to debate due to the fact that most of them are contained within the same area. Flying from one objective to another is more often than not a measure of seconds, instead of minutes.

Not only are these the quickest dailies to do, but they can be sped up even more through using a WoW dailies addon which provides all of the locations for the quest objectives. If you only do your dailies for one area, make sure its the Argent Tournament.