There are soooooo many variables when it comes to all of these radios - some you can control and most that you cannot.
Note: my observations are based on not only home use but also usage/testing at various places in my travels (currently playing with reception issues in Dare County, NC).
So what can you control? Well, do you really need a new radio? If you're not needing P25 Phase 2 capability and or dealing with digital simulcast issues, then the only reason for going to one of these two new radios is because you have the "option" of doing so.
The x36 (in my opinion) still has the same troubles for me handling Motorola systems with P25 voice that my old BCD396T did in most cases.
Motorola analog? EDACS (analog)? Just as good as any other radio.
None of the radios are perfect at digital simulcast. What works for some doesn't work for others. Every application and every system is different.
In "stationary" applications, I'd take the PSR-800/WS-1080 over all but "stationary" in my case typically means that the digital simulcast is handled well for one site of one system when you find just the right spot for radio placement. In general, for mobile applications, the x36 radios are doing somewhat better. Having said that, the x36 radios seem to "miss" activity altogether in some cases where the GRE/Whistlers receive something (the x36 radios seem to be "slow" to detect/decode activity). Still, on some occasions under the right conditions, I see the same performance from the 436 as I do from the PSR-800. In general, I'd say a good 20-25% of the time, the x36 radios miss activity that the PSr-800 detects and decodes.
Mobile applications (driving) I give the PSR-800/WS-1080 higher ratings than the x36 radios. Although the x36 radios allow you to toggle favorites lists, systems, sites, and departments on/off on the fly, it is really hard to tell what is currently enabled and if you have alot of different QKs programmed, you need to consult a document to recall (determine) which QKs you need to toggle. In contrast, the PSR-800/WS-1080 displays what is currently enabled and allows for toggling these things by name via the menu. Of course, if you have alot of scanlists, it can take time to scroll through the list - but it's still easier than looking at a piece of paper (which by the way, Uniden provided no way to print out from their software).
The display on the PSR-800/WS-1080 is much easier to read than the Unidens also.
I'm hoping for a perfect radio in the future but we all have to keep in mind that scanners are trying to do alot of things for alot of people, cover wide ranges of frequency coverage, many different types of systems, and even handle systems across wide areas of North America and beyond. Remember, typical user radios are being used 99% of the time on a single system and holding on a single channel/talkgroup. I'm betting that if you park your radio on a single system's talkgroup, the radio will do pretty well (with the possible exception of applications and/or systems with severe digital simulcast issues).
And finally, as far as the material quality of all of these radios -- I don't think they were designed to be dropped or to be used in industrial environments. I treat mine like my pets and try to keep them out of danger from being dropped or situations where they are likely to be damaged (you should see my wife's face when I ask her to be careful around them!). Professional radios are designed for these kinds of situations and in the event they are damaged, generally someone will just issue you a replacement.