>>6159817/bant/ is actually a good board, you always get shit on imageboards (especially random boards) but the good threads here are really good and its also such a nice friendly place
Nominations would go to:
/r9k/ - Just visiting there makes anyone feel a bit depressed
/adv/ - See /r9k/ but with the same fucking threads
/gif/ - People literally watching porn and asking for the sauce because they are too beta to find it themselves
/qa/ - Think the shit bits of /bant/ without anything good
/int/ - Everyone just hides with their own countrymen in shitty generals
/soc/ - It serves its purpose but its still fucking /soc/
On the other hand the best boards in my opinion are:
/tg/ and /qst/ - Comfy as fuck
/p/ - Just seems to be far less degenerate and nicer than the rest of the site
/wsg/ - Some of the memes may be reddit tier but you can't deny they produce so much OC
/sp/ - Top quality banter
/bant/ - Fun, comfy, friendly, feels like an actual community, variation, what more could you want