The NBA's competition level is the best it has been in a long time, mostly due to the incredible offense that is displayed by these five teams. These five are frankly on a completely different level than anyone else in the NBA.
All five of these teams have one guy who really gets the offense going, and each of them should be in the discussion for the MVP award. However, the best part is the fact that these teams have so many different options to go with that it is impossible to defend against.
(Note: "Offensive rating" is how many points a team scores per 100 possessions)
Stats courtesy of basketballreference.com and are accurate as of 01/18/13