For PUG 19 I would go to the crabs very east (more northeast - like around the lighter color of map) of Camp Bloodshore until level 22ish then go to Nanawa Mines and farm puks until about 28 then go to Coerthas, Camp Glory and farm Hippocerfs for a few levels THEN ... I haven't passed the THEN point since the new patch so I cannot give you more information yet! ;D

Good luck!