That depends on your interests and goals. Both CS and data science are thriving fields that offer lots of job opportunities. They also have a lot of overlap, since Data Science is an application of computer science and requires strong coding skills and understanding of algorithms and data structures.
In Data Science, you may specialize in working with data sets and using statistical methods to analyze data, build machine learning models, and make predictions. This field also involves working with Big Data and Cloud Computing.
Meanwhile, Computer Science is a broader field that involves designing, implementing, and maintaining software systems. You will learn about different programming languages, algorithms, and data structures. You may also specialize in software engineering, cybersecurity, game development, artificial intelligence, and many more.
The choice between the two fields ultimately comes down to your interests and goals. Consider the types of problems you want to solve and the types of projects you want to work on. Both fields offer great career prospects and opportunities for growth, so choose the one that resonates with you and aligns with your goals.