Just ran across a quest reward from Skettis that looks like it may be better for the arena.
Currently have Sonic Spear with Savagery (70 AP) and am looking at Windcharger's Lance with 35 Agility.
That's an increase of 30 Stamina for loss of other stats. an improvement?
Here's my armory:
Dunter
41/12/8 spec teamed with an affliction lock. I'm getting the arena xbow in 2 weeks and upgrading my hands and chest with the rare bg armor at the same time.