The ankrahmun one sure is annoying but also very unsafe. With enough people they just follow and hold the sd button. Very good to survive for a few minutes to server save though.
The thais ones.. uh. Lighthouse surely is a lot safer than the burning tower. On top and bottom floor you can get pushed into a full trap so fast if the enemy knows what they are doing.
On oramond.. people can technically stack up to kill you. If there are enough EKs they will just swing you down with normal attacks. The last one used to be bugged, is it still? You couldn't even SD that spot from the one just south of there.