I would say that most people fear the guild that killed them most when they were rr1-3 or pre-50, when they couldn't understand why they were losing in 20 secs. I still lose fights fast but at least i understand what happened now 
So, from my perspective, sotl and MM. Maels is pretty scary now but haven't played much recently.
Most vivid memory is Walker killing a bazillion people in an mg when i was 30something, he was very known then and when i clicked at him and saw his name i just started bashing random buttons in panic.
Think that is part of the reason most known guilds win many fights so easy, enemies panic a bit or a lot when they see who they are fighting.
So, from my perspective, sotl and MM. Maels is pretty scary now but haven't played much recently.
Most vivid memory is Walker killing a bazillion people in an mg when i was 30something, he was very known then and when i clicked at him and saw his name i just started bashing random buttons in panic.
Think that is part of the reason most known guilds win many fights so easy, enemies panic a bit or a lot when they see who they are fighting.



