Definitely wired for more serious listening and important calls.
I see a lot of people talking about latency - I am generally very sensitive to this, but I think Apple gets the delay down pretty low with AirPods.
I have another complaint, though: the Bluetooth spec doesn’t allow for enough bandwidth to simultaneously send and receive audio at proper bitrates, so any time you are doing both, it dramatically reduces the quality of both. This means if you are using Bluetooth for anything better than PSTN calls, you sound like shit.
Also, the microphones in AirPods make this so much worse by emphasizing sounds of anything you are doing - if you wash dishes or crumple a bag or basically anything, even if it seems relatively quiet for you, there is a good chance it will be loud as fuck for the other person.