I too prefer by far the Bensusan set; though I admire June's technical abilities, she has completely missed the point that traditional song is always understated by traditional singers, and histrionic interpretation -though it may impress- merely transforms a tragedy into a melodrama.  So far as the Norse versions go, the link I gave above will lead you to a good few, though you'll need some understanding of Norwegian to get much out of them; I have only a little, far too little to be able to help.