As a manager/team leader would you rather be assigned to a highly successful team, or a team that is less than successful. Why or why not?

Discussion 2:

Describe the best team on which you have ever worked? What made it so good? Was it highly successful? Describe the worst team on which you have ever worked. What made is so difficult?

For both of these, please be specific. Was it the communication? the leader? the leadership style? Decision Making? a Power difference? conflict? about what? lack of creativity? lack of participation?