title: Which sub tree has a higher priority in an Avl Tree Deletion
body: <p>On an Avl tree, when you delete a node with 2 children.. I know that you can replace it either with its successor (min value on right subtree) or its predecessor (max value on left subtree).</p>
  
  <p>My question is that: In standards, to what sub tree do I swap with the node?
  The successor or the predecessor?</p>
  
  <p>Thanks! :)</p>