#9 WWF vs. The Alliance
So this one is a bit of a controversial entry.
The WWF vs. WCW/ECW Alliance angle was the dream storyline of the century for fans. However, when daydreaming about it in the late 90's, fans looked at the opposing WCW roster as being Hulk Hogan, Scott Hall, Kevin Nash, Sting, Goldberg, Scott Steiner, Lex Luger, Diamond Dallas Page, Booker T and more, with only two of those actually being apart of it and not being treated like big stars in it either.
And if ECW was to be added to the mix, even though there were some notable extreme players missing like Sabu, The Sandman, Shane Douglas and some more, the ECW portion of the actual Invasion angle was pretty strong, except that almost all of them, Tazz, Raven, Mike Awesome, Justin Credible, were so watered down in WWE and WCW, compared to the huge stars they were under Paul Heyman.
Never the less, despite all these major factors taking so much away from it, I still think it wasn't a complete waste. Stone Cold Steve Austin gave a fantastic heel performance, particularly his work with Kurt Angle. And with few big stars in the faction, it allowed for some of the mid-card talent to shine, like Rob Van Dam and Rhyno, who wouldn't have been in the prominent positions they were had the NWO or Lex Luger been in WWE.
The Alliance was watered down, but they did still have some great show-stealing moments in 2001.