Smackdown vs. Raw 2007 is a solid wrestling game that has a lot of cool new features.
The large amount of players that are available to you at startup is really good. I also like how the developers added in a challenge series, and all the unlockables. Although, I think they should have had more legends to unlock such as Randy Savage and other classic wrestlers.
Overall, Smackdown vs. Raw 2007 is a very good game which can provide almost endless hours of entertainment through it's various modes of play, especially if you have a friend to help you "lay the smackdown" on your opponents.