I'd be interested in how it compares in quickness and low light as Samsung did an incredible job of making both quite good.
However I have very little interest in the V20 because of no AMOLED and LG's various issues. It'd have to be a lot cheaper than $672 for me to even consider it.
Personally for me, I think I'll be waiting til next year to consider a new phone as there just isn't any that really do much for me. Lots of good, I'd even say great phones but none that quite match everything I want. The closest for me is the Axon 7. I'll probably get one for a family member and compare it to my V10.
Next year sounds like it'll be a lot more interesting. Samsung will be trying to make people forget about the Note 7 failure, iPhone should be interesting, might get a Surface Phone, I'm hoping Google does something really interesting if they want to keep Pixel high up (I'm personally hoping they add spatial tracking, untethered Tilt Brush with augmented reality would be amazing), and the Chinese brands have been making the midrange stuff competitive with high end. And LG, Sony, and Motorola are always good for something interesting (even if it rarely pans out into being something really good).
I ordered mine from VZW yesterday as it will replace my VZW note 7. I held onto my Note 7 until the LGV20 came out. I should have it in on Monday. I already have an S7 edge so I will definitely know which is faster. The Note 7 and the S7 have the fastest focus I have ever seen! I am more interested in the 4 DACs that are on the LGV20 as I am a music nut. Thats why I had gotten the LGV10 late last year but the screen on that was bleh. Camera was excellent and sound was awesome on it but I hated the screen.
I really think they're pushing marketing buzzword with the quad-DAC. I saw some talk that they might be using several sub-DACs (they even said they'd turn off 3 of the 4 to save power and for varioius other reasons such as lower quality source, which makes me wonder if unless you're pushing 32bit/384 or DSD signals that you'll be getting all the chip has to offer in performance), although I personally am guessing they're just using a typical Sabre 8 channel DAC setup, and cascading them internally. Plus they integrated the headphone amp chip.
That's not to say it won't sound good, it should still and maybe even better than the V10, but there's a lot of audiophile nonsense (especially in marketing) that pervades stuff like this, and the reality is that Sabre just made a more mobile focused chip, very likely using what they already had (their 8 channel chips are likely the ones making most of their money and thus getting most of their focus).
It actually compares worse than the V10's chip in harmonic distortion and dynamic range (it does best it in signal to noise ratio), and I have a hunch the end result is further worse with the integrated headphone amp compared to the V10's separate setup. But it should be more efficient which could be a very worthwhile trade-off. It might not though, and implementation matters.