Why will no other turntable beat the EMT 927?

That must have been fun. You mention that the internal phono stage of the EMT927 was used.  Was it also used with the other 3-4 TTs in the shoot-out?  It is unusual that you and your friends were nearly as enthusiastic about the 950 as you were about the 927.  Most EMT aficionados who love the 927 don't love the 950 or any other DD TT so much.  But this means absolutely nothing.  The 950 is "in reach" of most well heeled audiophiles, whereas a really well restored 927 is almost in oligarch territory now. Two I found on line are well over $20,000.  That matters when one is doing comparisons.  I am not a big fan of the speakers you mention, but they certainly are not terrible.

@lewm the system in which we compared the 927, Feickert and Nantais Lencowe used an EMT JPA66 Mk2 phono. It was not the 927 internal phono. So we had a common ground to compare the the three TT

950 is owned by 2 of my other buddies. They don't have a 927. But both of them aspire to have one some day. The 950 is being used with internal phono.

Sonically, 950 is the best DD I have heard. No one i know prefers a 950 over 927. Not even in the same ball park. As I said, 927 feels like there is nothing more to ask for.

Update: I have now heard the EMT 950 and 927 in the same room (another friend bought it). Both using the TSD-15 cartridge and internal phono stages. The 927 is clearly superior. It sounds bigger, more fluid, more explosive. 950 has the EMT presentation of big bold sound but ultimately sounds a bit dry (like every DD)

So 927 remains unbeaten

950 is a poor TT.

 There are many versions of 927 depending on the restore. Of 4 I heard only 1 done by the Dutch restorer was good and they go for 50k +. They are great for jazz and rock and sound big and bold with good groove, but don’t have the nuance for classical similar to modern belts. This can be addressed to a large extent by having a cartridge like the Dava field coil which

At this point in time, the 927 is like Captain Ahab’s white whale. The one you might find may not bear all the sonic virtues of the one you are seeking, and it might bankrupt you nevertheless (not quite as bad as what happened to Ahab, I admit).