WCW Nitro for the Playstation had a large roster. It also had commentary, realistic looking wrestlers, and full motion video. There is nothing like Sting powerbombing Hogan 20 times and then putting the Scorpion Death Lock on him. All the submission moves in the game would lead to tap outs.
Also, the game had run ins. WCW/nWo World Tour didn't have these things.