I prefer AO 3 by a very large margin . 1 . Looks better , in general , IMO . The look reminds me of searching JSTOR for sources in College , where as FFN reminds me of shifting through forums in the AOL days . 2 . I prefer Comments to Reviews , and Kudos to Favorites . 3 . It ' s much easier for me to search and filter with the tagging system on AO 34 . I ' m a fan of freedom of expression for writers , and I am glad I don ' t have to worry about having my filthy torture smut deleted , which is always a worry on FFN . 5 . I like my daily Kudos emails 6 . Maybe it ' s just my fandom , but the writers and readers seem more mature on AO 3 , there ' s a bit more required to join and get stuff published so maybe deters some trolls who know they ' ll get less attention there anyways . 7 . The majority of my readers are here , so maybe that influences me , I just wanna be upfront about that haha ! With Skyrim I had more readers on FFN , so I tended to check it daily and check out stats and what nots , now I only care about AO 3 , and I check my stats on there about once a day or so , and I love how clean it is , and it doesn ' t over burden me with SO MUCH stuff . Like , I don ' t need a real time of hits per chapter to drive me insane , no thanks lol