I believe the only airline on the New York-Vienna route is Austrian Airlines, and they use brand new A330-200's on the route. Austrian is rated one of the best airlines across the Atlantic, but rarely is shown on 'Best" lists, due to its small size. I highly recommed Austrian for any routes to Eastern Europe.
« On ne voit bien qu'avec le cœur. L'essentiel est invisible pour les yeux » Antoine de Saint-Exupéry