title: What are the differences between Chosen and Select2?
body: <p><a href="http://harvesthq.github.com/chosen/">Chosen</a> and <a href="http://ivaynberg.github.com/select2/">Select2</a> are the two more popular libraries for extending selectboxes.</p>
  
  <p>Both seem to be actively maintained, Chosen is older and supports both jQuery and Prototype.</p>
  
  <p>Select2 is jQuery only, its documentation says Select2 is inspired by Chosen, but doesn't detail any improvements made (if any) or other reasons for the rewrite.</p>
  
  <p>Two libraries have pretty much same feature set, the only comparison I've found is a somewhat inconclusive jsperf test page.</p>
  
  <p>Does any of these libraries have any advantages over the other?</p>