My 800 is 7 years old.
In terms of sheer flexibility, it looks hands down, the best candidate, especially as that flexibility is dependent upon widely-used and ever-cheaper network technology and widely available skills.
The real advantage of AoIP is when you want I/O in different locations. There are plenty of single I/O unit solutions that are cheaper than AoIP or MADI.
But to really make it flexible, there needs to be compact PoE 4in/4out interfaces with mic pres. Each performer can then have one for mics/DIs/cue, and one could be used in the control area for the recording engineer for talkback/DI/speakers/phones. For our purposes, two like that would be optimum.
By the way, your comparison using the Ferrofish did not include mic pres, which your UFX does.