If an invasion angle happens again..
In 2002 when Vince bought WCW and ECW which brought out the Alliance storyline, you could easily pick out the top 5 superstars on the then WWE roster to defend the company in the main event of Survivor Series. They were The Rock, Undertaker, Kane, Jericho and the Big Show. Its not so clear cut now with so many talents along with others appearing two or three times a year (Undertaker, Rock, Lesnar, HHH). Who would your current top 5 be if say - Vince buys TNA and another invasion angle takes place?