I like the main event line-up that finished up the Invasion storyline:
Team WWF (Chris Jericho, Big Show, Kane, The Rock and The Undertaker) defeated The Alliance (Booker T, Kurt Angle, Rob Van Dam, Shane McMahon and Stone Cold Steve Austin)
Out of all those guys, only two of them -Booker and RVD- were brought in post-WCW buyout.

I will never understand why they didn't let this storyline slowly build and get the bigger names to come in as their old contracts expired. If they had delayed this by like two years, they could have had Hogan, Nash, Hall, Flair, etc. on the Alliance side.