Lakers--Which one to keep? Ariza or Odom

The LA Lakers are the top team in basketball.  Can they stay that way?  Oh yes!  Both Trevor Ariza and Lamar Odom are free agents this year and both contributed heavily to the team's title run.  Both likely will not be kept.  Odom made over 14million this past year and Ariza made 3mil.  They will have to pay Ariza more to keep him and Odom will be paid about the same.  It makes more sense in the long term to keep Ariza.  He will be a less expensive and is younger.  The energy he brings to the game is refreshing.  Odom can be the go to guy while Kobe is resting and that is what is appealing there.  Whichever one leaves means that either Adam Morrison or Luke Walton will have to step up their games to bring LA back to the title match.