>>3624754/r9k/ has more "ironic weebs", 15 year old kids who think that 4chan is a secret club inherently for social outcasts (despite being in the top 100 US visited sites) and people from that sphere of websites that includes things like
bodybuilding.com/pol/ has edgy 12 year olds, college kids who say shit like "there are only 2 genders" and think they're revolutionaries for it and middle-aged right-wing voters (Facebook moms and dads who vote Republican or UKIP if in UK). /pol/ is a board where sweeping statements, gross hyperbole and ad hominem are accepted as valid arguments
Both boards are filled with shitposters but overall I think /r9k/ is the bigger cancer