Right now I'm pretty sure that K/S Has the highest aggro generation due to 2 elite skills that act as a taunt
You also get a higher damage holy strike which again, helps with aggro. However, beware since knights are extremely expensive to gear since you need to be well started to tank. Of course, with a proper guild it shouldn't be too hard. For stats stamina,pdef and pattack are your biggest priority with some dexterity added somewhere if needed.
Takoyaki. 70k/57s/56w