Personally I enjoyed the giant fortress in Warslik's Woods, but I was an Iksar. If you aren't Iksar, it is a bit rough to get to. It's a decent exp spot, they are relatively weak, and they also have a chance to drop an earring called a Forest Loop that sells for about 400-500p in east commonlands.
If that is too far for you, you could always go to Upper Guk and head to the scryers camp, it may be a bit dangerous to break and maintain, but with the enchanter lulling and mezzing, it may work out fine.
Also, I have a 26 cleric, so if you ever need a third, let me know!
[You must be logged in to view images. Log in or Register.] char names are in my signature.