There are several kinds of assignment. It has been widely debated whether or not work as a group is beneficial than work alone on project. Although there has been a heated discussion regarding this issue, I strongly believe that it is much more beneficial to work alone, thanks to following main reasons.
First, group projects are mostly depends on the group member. There are some people who are not responsible for their work. They are not participating on the project. To specify my argument, I would like to illustrate my personal experience. When I was a college student, I had some group projects. In my group, there was some people who were not majoring this course. when we had a meeting they never showed up and did not do their work. This is because this class was not important for them. All projects were done by people who major this class.
Second, it is always difficult to gather together for the project. At least, three members have to schedule their meeting time and place. Also, members have to find out which role should they do. It takes longer than working alone. To illustrate this idea, when I had a group project, it took forever to find out place and time. Our group had six people and when we made a decision by massage, some people did not read or respond. If we work alone, it is much easier to find out place and time.
In summary,considering all the reasons exposed above, I indeed prefer to work alone. There would be some benefits of group working. However, it often make worse not only project, but also relationship between group members.