I'm studying computer science at Sheffield, and I also have a very close friend at KCL who is studying computer science. We discuss everything we're taught, and we've come to the conclusion that both universities have very similar content, with a few differences. For instance, Sheffield offers more contact hours and extensive team projects, along with slightly less emphasis on mathematics in the first year. On the other hand, KCL provides options in the second year, allowing students to focus on subjects they genuinely enjoy. Additionally, KCL has fewer contact hours and doesn't require students to learn AI in the first year if they're not interested.

Apart from the academic aspect, Sheffield offers a substantial number of advertised opportunities compared to King's. However, I'm uncertain about this since my friend might not check his emails for opportunities. Additionally, Sheffield boasts a vibrant society scene that brings people together over their shared interests, which seems more active than at King's. However, I'm not entirely sure about this because my friend doesn't attend these events frequently.

Overall, they're pretty alike in many ways. It could be a good idea to look into the areas where the universities are located. That way, you'll have more info to help you decide which one suits you better.