Sorted by best - worst, (kinda) similar to the PDA list. The articles themselves are probably still in development though.
Currently active PDA (from best to worst) :
Summary : X3N with less overspecced camera, 2019-flagship-grade performance (which is admittedly better than the X3N & F1 at least), matte stripes flanking the more noticeable POCO logo stripe, & less moddablility (less custom ROMs, no mountrw scripts).
Summary : Poco F1, with longer bootloader unlock timer & worse performance. In return, some improvement on audio & battery, & a literal step up on the display as it has 120hz (but you'll also have to deal with a hole punch). Of course, the build quality's also better, even if it's plastic imitating the glass sandwich build found on pricier PDAs.
The X3N is completely inferior compared to the X3P in most ways save for moddability (and cameras if that count).
Summary : The Poco F1 is awesome in many ways : High performance, good battery life, and ok audio. However, look deeper & its screen & bootloader unlock protocol brought it down.
Beware of F1's replacement displays, especially the "OEM" ones. These displays are inferior in some ways, such as not having oleophobic coating & more susceptible to scratches. I suppose that applies to all PDAs, but I'll mention the F1 since I've personally replaced the F1's display myself.
Summary : A complete downgrade on the A1 in every category save for performance, repairability (not confirmed yet), & display (and camera if that counts).
Summary : Honestly, the LG V30 is a surprise. Comparing it to the F1, it loses out on the screen longevity, speaker quality & battery life. Against the even better Zenfone 6, add in the bootloader unlock protocol & camera privacy. However, the V30 actually lacks the issues found in both of them; namely F1's bootloader unlock protocol & Zenfone 6's motherboard issues. It also adds in a better headphone jack.
With the lack of active development (and available up-to-date builds stuck on Permissive SELinux), the V30 had to be moved down. At least it's more stable than the 6z, even though that's not saying much - literally anything is more stable than the 6z.
Dead PDA (from best to worst) :
Summary : Pixel XL with an extra SIM slot & Mi A1's capacitive front with the home button doubling as a fingerprint scanner & remappable sides.
Summary : The Zenfone 6 is a straight upgrade over the F1 in many ways : Dual SIM + microSD, better SoC, battery life, screen, camera privacy (remember, it must flip to the front if it wants your picture), and, most importantly, bootloader unlock protocol. However, it also brought in one massive issue, and that is stability. Sure, while daily use seem stable, it takes only bad luck to get random reboots. This feels a lot like an "unfinished beta" device.
Summary : If this is the standard base PDA Google expects every makers to make, this "standard" is too low. And, with the ever-lower standards its successors makes, I'd be justified in saying that the world is getting worse in the future.
Summary : Good bootloader unlocking protocol, bad repairability, performance not fit for gamers.