Since people brought up the 11.6" MacBook Air vs 12" MacBook comparison.
I personally did not like the 11.6" MacBook Air. The keyboard was OK but the screen was not good. It had poor viewing angles which did not significantly improve over the years, and IMO the pixel density was "off" for macOS at the time. It was too high compared to the Pros, meaning that with default settings, text was quite small, with not very good text quality. I had been arguing for a 12" MacBook for a long time before that but when Apple finally released the 11.6" Air, I was so disappointed. And once the Retina MacBook Pros came out, the 11.6" Air's screen looked even worse in comparison.
The 12" MacBook came out in 2015 with a MUCH better screen that not only was Retina, but had excellent viewing angles as well. Too bad the keyboard sucked, so again, I was very disappointed. The 2015 was also a bit slow, even for the era. I waited until 2017 and got one with the improved keyboard, but admittedly the 2017 MacBook keyboard was still just mediocre. However, in terms of speed, the 2017 ran circles around the 2015. The 2017 MacBook is still the laptop I use today.
Note though, this is typed on a 2017 13" MacBook Air, which also has a poor screen. However, this is not mine; it's my wife's.
Some people don't seem to care much about viewing angles or Retina. So it was either get a 2015 MacBook Pro with much better screen but that will go vintage soon, or get a 2017 MacBook that has the crappy screen. Last year I decided on one of each, the former for my daughter whose needs will grow over time, and the latter for my wife who still doesn't seem to care after many, many years. However, the 2015 MacBook Pro will likely go vintage within the year, whereas the 2017 MacBook Air likely has a couple more years before it goes vintage.
I personally did not like the 11.6" MacBook Air. The keyboard was OK but the screen was not good. It had poor viewing angles which did not significantly improve over the years, and IMO the pixel density was "off" for macOS at the time. It was too high compared to the Pros, meaning that with default settings, text was quite small, with not very good text quality. I had been arguing for a 12" MacBook for a long time before that but when Apple finally released the 11.6" Air, I was so disappointed. And once the Retina MacBook Pros came out, the 11.6" Air's screen looked even worse in comparison.
The 12" MacBook came out in 2015 with a MUCH better screen that not only was Retina, but had excellent viewing angles as well. Too bad the keyboard sucked, so again, I was very disappointed. The 2015 was also a bit slow, even for the era. I waited until 2017 and got one with the improved keyboard, but admittedly the 2017 MacBook keyboard was still just mediocre. However, in terms of speed, the 2017 ran circles around the 2015. The 2017 MacBook is still the laptop I use today.
Note though, this is typed on a 2017 13" MacBook Air, which also has a poor screen. However, this is not mine; it's my wife's.