Searching a stable js-Tree PlugIn, jsTree or Ext-Js Tree?

Im evaluating a tree PlugIn for a Admin Interface in Intranets (Speed and Size do not matter). The Internet and a expensive search turned jsTree a开发者_JAVA技巧nd the ExtJs' Libraries Tree up as the most complete ones. The differences seem rather minimal, so my questions are:

Which is more stable? As jsTree is a jQuery Plugin, does ExtJs play with jQuery, too? Can jsTree look as polished as ExtJs?

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If someone is interested, we will end up using jsTree as there is no explicit garantee, whether ExtJs is OSS in the foreseeable future.