I think we are forgetting something important when it comes to comparing these two animes, how they end. AOT's ending of season one left off giving us even more questions and years without a release date for the second season for years. Too me it felt like there was going to be no season two so it just ended there. However akame ga kill ended in a very fitting way. Most of the crew reached their individual goals but only after death. It was a very satisfying ending it left with no questions raised.