I've run it countless times on magsorc and magblade and they are very capable of completing. Just curious if there is a "faster, better" option than either of these two classes and if so, what general build / bar concept are you doing to complete.
I agree about the stamSorc, great aoe, self heal and mob control. Make sure crit surge is up all the time and you are good to go, like @Shanehere said, maybe vigor as a backup. Someone experienced will run vmsa in half an hour: