DAP Roundup
Since it's weekend and I had some time to compare all the DAPs in my collection, decided to give a brief overview of them all. Do note that I don't care about BT/WiFi and not having Android is a big plus in my book (I need battery life more than Tidal streaming of albums I already got 24-bit FLACs of).
Sony NW-A55 ($200)
It's a Sony. So they won't have the highest output power, nor will they measure that well. Despite all that - they will sound awesome, and the A55 is no exception. There's a caveat: you need to install a custom firmware (easily reversible)
courtesy of MrWalkman but then you're all set. Best handling and UI among the lot, also has great battery life.

Questyle QP1R ($800)
The best sounding DAP in my collection and the gap between this and the runner-up is rather substantial. Questyle hit the nail on the head with the QP1R, and then shot it in the foot with that atrocious UI and navigation system picked straight from the start of the century. Battery life is poor as well and there's no balanced out.
Then again, it doesn't need balanced out as the single-ended out wipes the floor with A&K SP1000M/AK380 and a certain Fiio M15 (one of the most overhyped DAPs on the face of the earth, but I digress). It does all that at around half the retail of those. Output can be a bit noisy with very sensitive IEMs but even then once the music starts playing you forget about those minute details.

Cowon Plenue R2 ($600)
The most versatile DAP in my collection. Got a true balanced out that provides stellar separation on certain IEMs and practically convinced me to get a pair of balanced cables. The display is gorgeous, it's not as bulky as the QP1R and got very good battery life for a device of such class.
Then comes the negatives: a laughable BT 3.0 support (A2DP yay!) and a watered down single-ended output. Also, the output power isn't that ground-breaking and can't drive high impedance cans like HD650 to satisfying levels. Things get loud, but I lose the dynamics, so it's not really properly driven.

Cowon Plenue V ($140)
It's a cute little DAP that has phenomenal battery life. In fact, it's got perhaps the best battery life in its price-class now. Output is warm-ish which is a welcome departure to the rest of the budget option with ES9218P chipset (most of them are too clinical/sterile in tone). The UI though runs at like 20fps and the display is pretty poor. I find myself picking up the Sony more often than these lately. These also have a memory limit of 200GB so if you have a large collection - perhaps not the most suitable option (not an issue for me).

LG G7 ($250)
This is a phone, but it's also a very capable DAP. The signature is a bit too sterile for my tastes but it does pair well with warm IEMs. Good output power for the most part, immensely more usable than any DAP on the face of the planet and you can also make proper phone calls! It's very good even as a phone btw, so it might even convince you not to buy a DAP.
Fiio M6 ($140)
Nothing but a dumpster fire. One of the worst DAPs I've ever used. Buggy UI, unusable music player app, poor battery life, slow operation, middling sound quality... a complete mess.
I hate myself for buying this. Will probably sell it down the road once I'm done with the review.