we dont have empress gee, and while we do have “autumn beauty”, there has been so much confusion with this named cultivar as there was a time onegreenworld was shipping different-fruited jujus under the same name. “Winter delight” was the other cultivar it may have been sending out.
to complicate things, autumn beauty seems to be under another name posted at new mexico state u website.
The autumn beauty we have has large fruits, but mediocre in quality, perhaps affected by our extreme summer temps. It often leafs out much earlier than the interstem it is grafted to, and will even leaf out earlier than wild-type rootstock. It also often presents with long forward-tilting thorns, which could reach 2"
we don’t get much rain here, but from observing well-watered potted plants and neglected potted plants of the same cultivar the variety honey jar seems stable in fruit flavor and quality, while bigger fruited cultivars such as li will have variability in favor of the well-watered specimens. Our sample size is rather small so there might be other factors involved.
what is conclusive though is that a sudden downpour will invariably result in cracking of some cultivar’s fruits, especially the cylindrical or pear-shaped. Lang, norris, r4t3, xu zhou are quite susceptiple. Sugarcane also cracks with a sudden downpour but thankfully just tiny slits instead of gaping wounds.
while a legitimate question, nobody can really claim authority when it comes to rating fruits. Have come across several(all ladies) who rate sour-fruited wild-type jujus as superior to the more in-demand cultivars as honey jar and sugarcane. While i don’t understand why they like them sour, they --conversely-- probably don’t understand why i don’t like them sour, haha. Just because have grown and sampled 70+ juju cultivars won’t make me an expert on what the next person’s choices might be. It is all a matter of personal preference since like color-blindness and odor-blindness, humans probably also have taste-blindness and varying taste perceptions
moreover, juju quality can also vary between different regions of where they are grown, and as jujus can multicrop in one season, there will be considerable differences between the first crop and the second crop(at least here in las vegas)
lastly, you probably will notice, most juju aficionados posting in this forum(myself included) are promiscuous fruit-hippies who can’t be satisfied with just one cultivar 
i think the best aproach would be to grow as many cultivars as your orchard will permit, and then decide which ones you;d want to keep and propagate the most
in a nutshell, a good number of folks in this forum and other fruit forums favor honey jar and sugarcane. While i admittedly love honey jar eaten fresh and dried, and also like sugarcane when dried, i would much prefer the varieties sihong, chico, and li(of the relatively available cultivars out there)
and since you’ve mentioned being handy with grafting there are many of us here who share/trade/sell scionwood. Just post requests this winter and will guarantee several members will be more than happy to accommodate 
and in our own little way enjoy sharing every thanksgiving what we’ve been ardent proponents of: self-rooted juju cultivars, postage included 