For instance, Qatar Airways often ranks highly in global surveys for its excellent service and comfortable cabins. Singapore Airlines is also frequently praised for its top-notch service and in-flight dining.

Budget airlines like Southwest Airlines in the U.S. or EasyJet in Europe might be the "best" for those prioritizing affordability.

It's also worth considering regional airlines that might provide the best service or most direct routes for your specific travel needs.

I would recommend researching and comparing airlines based on your personal travel priorities to find the best fit for you.