First off, I can't remember all of the names correctly, so please keep this in mind. Both of these DS games are mainly the same, but I prefer Blade of Fate for several reasons. Blade of Fate doesn't have nearly as many junk/joke characters. You can enjoy a good random match most of the time, and laughing at the uncommon chance of getting a joke character. (Bonnie or Kon) Dark Souls seemed to be slower when it came to dishing out your attacks. I like Blade of Fate's faster fighting better. Dark Souls' (B: DS) character voice audio quality is noticeably lower than Blade of Fate's (B:BoF) for the most part. Especially with characters like Chad or Aizen. And that's a true shame because the crystal-clear lines of B:BoF are a pleasure to hear. They make me laugh. The music and graphics quality seems equal. B:BoF had a larger gallery and better voice audio since it didn't have to worry about making room for extra (stupid) characters. The intro to BoF was cooler as well. It rarely looked boring or pixelated, the music matched better, and image alpha+scale effects were not overdone. And the story of B: DS had nothing to do with the story of B:BoF. The game immideately refernces Aizen, Gin (awesome), and Tosen at the intro, but throughout the whole story mode, they are only talked about, like a thing of the past. No real light was shed on what exactly took place at the end of B:BoF, or what Aizen and his buddies were up to. They just don't do anything except exist. Instead, we're stuck following the story of some Mod Soul and his angry monster "friends" while Byukuya is sick, and Yuroichi is bent on Ichigo seeing her naked. Lovely. The story mode of this game was less confusing than B:BoF, I'll give it that, but it was alot less fun to play. The missions you had to do were dull, bland, generic, and sometimes outright stupid. (why such pixelated foes?) There were a few cool parts, like battles against Great Fishers and Menos Grandes, but that's about it. Overall, it's a decent game, but not as great as Blade of Fate.