that respawn in ph is good but i prefer the goroma one: malada island. u must finish the shattered isles quest to access it. therefore, it tends to be less crowded.
if u r a sorcerer u gonna have fun cuz this is a great place for hells core. otherwise, fill up your pants with gfb's. fbomb is not a must but it can help as well, depending on ur lvl.
im a newbie here and this is my firt answer. if i broke any rule id like to be aware so i can edit it. anyway, i hope it helps!