There are a handful of legit startegies that are used in the tengaged games.
Alliance master- They form alliances frst day ranging from 2, 3 up to as many as they think they need to win the game. sometimes even playing more than one alliance.
Advantages- They obvioulsy have many allies and if they have a strong alliance hold and they get majority of the game there won't be much to do except hope you are not nommed.
Disadvantages- If they become to bossy or pushy or untrustworthy to their alliance members mutany is only one click away for the rest of the members.