I never bothered with that FATE-pt nonsense in Northern Thanalan when I was levelling, in fact, I hardly ever even went to Northern Thanalan - I simply forgot it even existed. Instead I hung around Whitebrim in Coerthas til about lvl 44-45, then I moved to Saint Coinach's Find in Mor Dhona til 50. The FATEs there are pretty rewarding for exp and levequests help fill in time between them.