3, I don't have many of these, but those I have were extremely well recorded/original masters
4, extremely close to 2, I doubt I could distinguish between the two in blind testing
1, haven't played cd's in a few years, so this not a fair rating, my experience is that transport used has great effect here
Bottom line for me, I have no strong preference for any playback method, all good for sq, rips and streams win on accessibility/create my own mixes.