#3) The Shield
When people start branding your faction as one of the greatest in the history of the WWE, you know that expectations are going to be really really high. This was especially true when Seth Rollins, Roman Reigns, and Dean Ambrose split up to embark on their respective singles runs.
And, all three of them have stepped up the mark. They have all been WWE World Champions and are widely regarded as the three biggest names in the company. In terms of exceeding expectations, The Shield is right up there with the best.