title: BackgroundWorker or Task, which to implement?
body: <p>I am new to TPL and I was wondering when to use BackgroundWorker and when to use Task. Both do the same to me. Shall I change all my BackgroundWorkers to Tasks? Do Tasks perform better or what is all that Task standing for anyway? Does a Task.Run create a new thread? Are Tasks Ui-friendlier or so?</p>