World Wrestling Entertainment is its own company and they do their own storylines, but sometimes they borrow things from other companies. When they acquired World Champions Wrestling in 2001, they obtained the talent contracts of dozens of wrestlers, their vast tape library and they also put some WCW feuds on WWE television as well. It was a smart move for WWE to use WCW storylines on their shows. Why not? The owned the company including their rights to everything, so it made a lot of sense to incorporate some of their angles. The same fans that watched WWE were watching WCW at the time. By using WCW stories once in a while, it let the fans know that WWE was definitely paying attention to them too. There were also instances in the early to mid-1990s where WCW feuds took place in WWE as well. They involve some of the biggest names in the history of wrestling. In fact, in the seven feuds that you're about to read about at least one of the performers is either a WWE Hall of Famer already or is a lock to be a Hall of Famer in the very near future. These aren't the only seven feuds, but they are seven of the better ones featuring some big names that ended up having a rivalry in WCW and then WWE as well.