I don’t think anyone one here is going to have a solid background on these schools. so you’re honestly better off researching on your own.
but with the little research that i’ve done. U of Okla. is going to be the more crazy social school. afterall, if you can research a school and have some sort of “fraternity” news headline. they’re obviously crazy.
from the pictures of u of ark. it’s going to be a nice school to go to. but it’snot going to be the social aspect you’re looking for. they have the social events (frats, sororities) but the people there seem very bleak and reserved.
but then again this is my opinion. best source is to look for their frat facebook page and look around.