Fortunately, I'm not feeling the need to replace my Nexus 5X yet. Maybe next summer when the Moto G5 comes out, I'll see if it's worth switching -- or maybe I'll wait until 2018 and get a Moto G6, but I'm not getting a Pixel.
And if some key apps I use ever end up getting ported to Windows 10 Mobile, I'll consider Microsoft for my next device. But that'll be a ways off: I rely on Lyft to get around, so I can't use a phone that has no Lyft app.