8. Sometimes They Even Have More Than Six Members At Once
In spite of the name and the classic number of members that go with it, the fact is that a number of variations of the team have actually had more than six members. In fact, there has been a Sinister Seven, a Sinister Twelve, a Superior Six and a Sinister Sixteen - all of which are considered to be iterations of the original team. Such is the threat of Spider-Man to the heroes in and around New York, they have resorted to using larger numbers of heroes to fight him, while others were put together for different reason. On that note...