There is absolutely no need for any new quests under level 18 honestly. I'm on my 4th life and stopping completionist because I am not going to do the same Amrath Quests bunches of times just to cap and TR again through the SAME low level content over n over agian.
For those of you having problems. By the time you hit level 7-9, try farming Shadow Crypts 15 times on norm, then doing hard elite. I bet you go from lvl 9 to 10. Try tomb of the tormented (rat maze). Yes this quest is VERY easy, HINT: chain missles works GREAT! 22 mins runs for 15k exp first time.
By then your 12-13 and all the "large adv packs" open up for prime leveling. Level 15 is where I noticed the biggest stoppage in exp, but still easily made it to level 18. Once there, it's IQ, DD, and Amrath until your eyes bleed!