Actually, my Aeducan Warden was pretty silly.. I won't get into all of it. 
I'm more fond of the Commoner.
You should have seen my nerd action hero Amell. 
Aye, I know that there's a number of people who prefer "the Commoner" origin more, and I can understand why. I have a special reason for liking my Aeducan enough for him to be (my canon) warden. I just think he's fit perfectly as "Warden-Commander" type or someone who's familiar with political intrigue. Besides, I like how he's pretty much fallen from grace, and not to mention the Exile's theme.
Speaking of the origin for your Warden, I think Cousland is the only origin where you can actually justify having some intense personal feeling against Howe. While in every other origins, Howe is pretty much a thorn in your way, and you couldn't care less about chop his head off and be done with it.
I do recommended Human or Elf origin for DAI.