DW's 747 mould, updated to todays standards (gears, wings) would easily blow all of todays offerings out of the water.
HX etc. seem to have success in camouflaging their weak 747 moulds with lots of detail and gimmicks.
I personally think HX's 747 mould is also one of the best available now, to me the only problem, besides the well-known way too long landing gear (I highly doubt they are based on the length that the landing gears fully extended in the air), is the angle of the windshield (it always seems a bit too slippy).
Besides, NG's 747 mould, assuming they can fixing the "flat" nose cone, will also be a great mould.
These two moulds have one common, that is they both represented the cross section of the real aircraft correctly. Most of current moulds may have decent side silhouette, but the cross section is not that good, even a completely disaster - especially the Bigbird, which the cross section is an unbearable oval:

That is miles away from the real aircraft, which is an egg shape with elegant curvatures changed at the roof, slightly looked like 8-shaped:

Both HX and NG managed to sort of recreated this cross section shape:
IMO NG did it better, catched the flaten line on the roof very well.
DW's mould also have sort of the cross section, but lack of the flaten line on the roof, still can be improving:
Besides, JC Wings also made this on their 747-400 mould, but I don't have one here.
Honestly, I think this problem on the 747 also represented a widely existing problem in all die casting models. ppl usually only cares the side profile, which could be the most important since it's also the most used angle in plane spotting, and typically just ignored if the cross section and the top view silhouette are accure or not. However, to me, you can only said a mould is "accure" when it's accure in all 3 dimensions.
Taking examples from my JetHut 737-400 and Panda 737-800 again. Here we can see the Panda catched the sharp profile of 737's nose cone even in top view, and the JetHut, despite did it well in side profile, have it unnecessary rounded from top. This is not uncommon in many moulds.
