I think it depends on how many quests you have left, how fast you are at questing, and how well you know the quests.

When my druid hit 70 a long time ago he hadn't really done many quests in SMV or Netherstorm yet, he had about 2000 gold. I got him to 5000 gold in something like 3 days just questing in those 2 zones, selling rewards I didn't need and getting 9-15g per quest.

Dailies take me WAY longer than that, especially since you have to travel between places, etc. I think if you still have some quest hubs available its faster to finish those first before doing dailies, personally.