title: when to use Collection<T> vs List<T>
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/398903/what-is-the-difference-between-list-of-t-and-collectionof-t">What is the difference between List (of T) and Collection(of T)?</a>  </p>
  </blockquote>
  
  <p>What is the best practice for when to use one vs the other?</p>
  
  <p>Both implement IList&lt;T&gt; and hold the data in an ordered fashion, but only List expose the sorting semantics.... </p>