Here is my take on that.....
From reports they are both very comparable. So for me it comes down to the companies.
Panasonic a behemoth company that doesn't care about vaping in the least .... just their bottom line and stock prices.
AW a smaller mfg who understand that the vaping community is a huge part of their business. With Andrew often providing tech info and details to us. A brand much more willing to produce the battery of the future we might need for future mods.
I'm stick AW all the way even if they cost more its an investment in the future of vaping.