It is difficult to choose between Erwin Smith and Grisha Yeager as they are both complex and compelling characters in the anime series "Attack on Titan." Erwin Smith is a strategic and charismatic leader, known for his intelligence and tactical skills, while Grisha Yeager is a mysterious and enigmatic figure with a tragic past. Ultimately, the choice between the two characters may come down to personal preference based on their individual story arcs and impact on the overall narrative of the series. **

Karen Yeager is a fictional character from the popular book and film series, Harry Potter. She is the wife of Argus Filch, the caretaker of Hogwarts School of Witchcraft and Wizardry. Karen is known for her strict and no-nonsense personality, often enforcing the rules and regulations of the school alongside her husband. She is a minor character in the series, but her presence adds to the depth and complexity of the magical world created by author J.K. Rowling. **

Eren Yeager's ideology can be described as one of extreme nationalism and a strong desire for freedom. He believes in fighting for the freedom of his people at any cost, even if it means resorting to violence and destruction. Eren's belief in using force to achieve his goals is driven by a deep-seated anger towards those who oppress and control his people, leading him to take drastic actions to ensure their freedom and survival. **

Eren Yeager has green eyes. This eye color is a distinctive feature of his appearance in the anime and manga series "Attack on Titan." Green eyes are often associated with his determined and intense personality, adding to his overall character design. **

It is difficult to compare the strength of Eren Yeager and Son Goku as they come from different fictional universes with different power systems. Eren Yeager is a character from the anime "Attack on Titan" and possesses the power of the Founding Titan, while Son Goku is a character from the "Dragon Ball" series and is known for his incredible strength and ability to transform into powerful forms. Ultimately, the strength of each character is subjective and depends on the context of their respective stories. **

Grisha Yeager let himself be eaten by his son, Eren Yeager, as part of a plan to pass on his Titan powers to Eren. Grisha believed that Eren was the key to saving humanity and stopping the Titans, so he made the ultimate sacrifice in order to ensure that Eren would have the power needed to fulfill his destiny. By allowing himself to be eaten, Grisha was able to transfer his Titan powers to Eren, setting in motion a chain of events that would ultimately lead to the salvation of humanity. **

Yes, Grisha Yeager does see the future Eren and Zeke. In the anime "Attack on Titan," Grisha has the ability to see glimpses of the future through the power of the Attack Titan. This allows him to see key moments in Eren and Zeke's lives, including their conversation in the forest and the events leading up to the destruction of the walls. This ability to see the future plays a significant role in the storyline of the series. **

No, Eren Yeager did not already know everything that will happen. While he possessed the ability to see glimpses of the future through the power of the Attack Titan, his knowledge was limited and he did not have complete foresight. Eren's actions throughout the series were influenced by his desire to change the course of events and prevent the suffering of his loved ones, rather than following a predetermined path. **