They're all toys
Let's face it, they're all toys anyway, for 99.999% of us. I think it's a pretty safe assumption that non-LE/military individuals (and even LE/military who are issued guns OTHER than Uzis) who own Uzis in ANY configuration will never use them for anything but plinking and/or shooting matches in which dirt clods, tin cans, paper and metal plates are the only targets. And none of those targets shoot back.
As one of the 99.999%, I happily and unashamedly declare that I like ALL guns, each slightly different configuration for a slightly different reason. It's just a hobby. These are toys.
Now, if this poll was limited only to those LE/military personnel who ARE issued the different versions of Uzis, and have some experience in their use in carrying out their jobs in their professional capacities, then I think hearing what those people had to say would be interesting indeed.
But I have a hard time imagining that many LE/military people even actually use Uzi's very much anymore, given the prevalence of shotguns, MP5's, AK/M16 variants and newer-generation SMG's being used in roles which Uzi's may have once occupied.
In that regard, I think hearing from some old IDF vets from the 1967 & 1973 wars would be interesting.