You have to remember also that each site is usually geared to different readers. On literotica, they do not allow underage sex or rape. On BDSMlibrary.com, I don't think Jinn has ever rejected a story (at least none of mine and I do write a wide variety).
As far as presentation of stories, BDSMlibrary.com far exceeds any of the other sites I belong to. On Literotica, if you post a story, it is one of about 25 that day and it goes off the "new" story section for only 5 days. The only way to get high numbers is to get high voting average so it will stay on the Top list, but even then, it is difficult because it runs 5 pages and only the first page will get you high views. Literotica only allows about 5 word intro's, most sites do not allow any, a far cry from BDSMlibrary.com.
I also think that BDSMlibrary.com has a higher caliber of writers. Some sites post stories that are barely legible, never mind interesting, written in 10 minutes. BDSMlibrary.com has a fine group of writers, each week getting better. I am enjoying Cortez's stories lately.