Although it should be noted that my "set" is only 33% complete (well, more like 45% now I've capped the raw video from the TESB discs). If you live in Europe/Australia, and you have a widescreen TV, then I can say without too much fear of being accused of blowing my own trumpet that my version of ANH is the best in terms of video quality. It's not perfect and there is still room for improvement, as you will realise if you read some of the comments in my thread.
I'm not really fit to make a judgement on audio quality, as with my system (and my ears which have probably suffered permanent damage from too music loud music when I was younger) I cannot tell the difference between AC3 @ 192kbps and LPCM @ 1536kbps.
I wouldn't recommend the Farsight version to anyone; the white level is set far too high. Disappointing as setting brightness and contrast correctly is the first most important aspect of any transfer.
Dr Gonzo's version scores highly on presentation, and is the most popular version seen for sale on eBay and for download from torrent sites. Personally I find the image detail to be slightly too soft for my liking.
ISOMIX seems to be a bit noisier, but otherwise is similar to both the TR47 and EditDroid versions; all three are very good transfers. (I assume that "Row47" is essentially identical to the TR47 version in terms of AV quality). All three have a slightly different colour balance, ISOMIX is perhaps a bit too red. ISOMIX and TR47 suffer from chroma-subsampling artefacts due to DV compression, whilst EditDroid suffers from dot-crawl. There's not much to choose between the three, but EditDroid probably wins out because of its overall quality (including presentation/menus).
I'm optimistic that future versions can improve on the good work that's been achieved already. For example, when Dr Gonzo produced his version (in 2001/2002?) I'm guessing a "fast" PC would have been around 1GHZ. My PC is nearly three times faster, but even so with the advanced noise filtering in use it took me about 48 hours to encode the video. That level of video processing would just not have been feasible a few years ago.