Review of School Days
I'm going to do something different, I'm not going to review the Anime School Days but rather the H game School Days HQ, its origin. The reason why I'm doing this is because the anime's ending is one of many endings in the game. If you don't like the anime because of how unbearable the main character is, the solution is to try a different route. The game is a choice based visual novel, in which all your outcomes are decided by you. Therefore, you can either keep a cool head and make logical decisions or be a buffoon like in the Anime for fun. Forexample, endings like Christmas Eve, all of Makoto decisions leading up to it are genuine. In this route, he loves Kotonoha and no one else, he doesn't consider switching to Sekai due to feeling bad for her. Personally, this is the best outcome but others might argue that endings like the Harem one is surperior. However, I truly believe that love should be commited to one person, no more juggling who to love and then leading to death like in the Anime.
If you have the free time, you should consider playing the game rather than watching the anime. It gives you control over the outcomes.