I feel like Dark Souls II had much better gameplay, but Dark Souls was better at the story telling. I also think the characters you meet in Dark Souls, such as Solaire and Siegmeyer, make it a far more endearing game as well. I don't remember a single character from Dark Souls II except that lady who I had to painstakingly warp to so I could level up. On the other hand, the environments of Dark Souls II were more aesthetically pleasing then the drab grey and black of Lordran (although Ash Lake is still gorgeous.) Anyway, I tend to be 50/50 as far as which I think is the better game.