[p]Mithaniel Marr... since you are Qeynosian.[/p][p]Brell may have created the Dwarves, but this doesn't help you in combat ^^[/p]
Rallos Zek if you're willing to betray to Freeport or Neriak. But if you stay in Qeynos or Kelethin, Mithaniel Marr.
Zek has the best blessings by far for DPS. I'm in Qeynos and worship Marr, but using some of the Zek blessings/miracles on my Brigand almost tempts me to exile so I can worship Zek. And yes, if you exile you can worship any deity, but you won't lose your masters by betraying to the other city.
I put out some pretty sick dps as it is, but I can't tell you the number of time some of the Brell miracles have saved my butt. Course you would have to deal with some of them being crafting miracles >.<