I think NJ is pretty much perfect, I wouldn't change anything on there.

I think Slippery would benefit from both Borderline and Edge Of A Broken Heart, although style wise, maybe Edge was too poppy to fit on to Slippery comfortably?

I'd happily live without Without Love. I love the acoustic version of Never Say Goodbye, but the album version doesn't do it for me...

As far as the Demos go, although I do enjoy a lot of them, especially the NJ ones, I don't think that they should have made the album at the expense of other songs. The Slippery ones are mostly pretty weak.