The story in AC Origins is centered around Bayek's fight against the Order of the Ancients in Egypt. It shows the birth of the Creed. In AC Odyssey, the story is more complex. Kassandra/Alexios' story involves not only their own family mystery but also the politics and power plays in different Greek city - states. Origins' story has a more somber and serious tone due to Bayek's personal losses. Odyssey's story can be more colorful and full of Greek mythology elements.
The AC3 story has its merits. It offers an interesting plot with twists and turns. However, it may have a few flaws that could affect your enjoyment depending on what you look for in a story.
The main difference is the setting. Origins is in Egypt and Odyssey in Greece. This leads to different cultural elements in the stories. Origins' story is more about the origin of the Assassins. Odyssey is more about the hero's personal journey. Also, Origins has a more straightforward story arc compared to Odyssey which has more branching storylines.
I'm not sure specifically which 'ac1' you are referring to. It could be a game like Assassin's Creed 1. In Assassin's Creed 1, it tells the story of Altair. He is an assassin in the Holy Land during the Third Crusade. He embarks on a journey of assassinations and self - discovery, uncovering a conspiracy within the Templar Order.
The length of the AC2 story can be quite subjective. On average, players might spend around 15-20 hours to complete the main storyline. However, if you get into side quests and take in all the details, it could extend to 25 hours or more.
The length of the AC4 story can vary depending on how quickly you progress and explore. But on average, it takes around 20-30 hours to complete the main storyline.
This was because it was not a real work and there was no relevant information or comments. Please note that anime and novels are different. The plot and characters are usually fictional and exaggerated. There may be some special rules and restrictions in anime, so you need to have an in-depth understanding and discussion of the specific work.