5. Big Show 1999
http://www.youtube.com/watch?v=XiK4uiJEiZM The first of the WCW stars to make their way to the WWF was Paul Wight. The Giant had been a multi-time World Heavyweight champion but hed been losing momentum since 96. Vince McMahon had won the Royal Rumble but it was decided that Austin could challenge The Rock for the belt if he beat the boss in a cage match at the St Valentines Day Massacre PPV. Austin thrashed McMahon and teased an exit many a time, only to come back and beat on him some more. Suddenly, the mat ripped open and Paul Wight climbed through to the astonishment of the crowd. He started throwing Austin against the cage until he accidently threw him through it and guaranteed Stone Cold his WrestleMania main event.