Over the last two years, Apple has gone from selling one AirPods model to four. You can currently buy three earbuds—the 2nd-gen AirPods, 3rd-gen AirPods, and 2nd-gen AirPods Pro—or the AirPods Max over-the-ear headphones. Let’s set that last aside for a moment. If you’re willing to spend $500 or more on a pair of cans, you’re making a whole different buying decision than if you want true wireless earbuds. But that still leaves three relatively similar-seeming earbuds to choose from. So which is right for you? Features at a glanceMaybe the best way to make a buying decision is to see how the th…