The “best” seat on an airplane in economy class can vary depending on personal preferences and the specific aircraft configuration. However, here are a few factors to consider when choosing a seat:

1. Legroom: Seats with extra legroom, such as bulkhead seats (located behind a solid partition) or exit row seats, are generally preferred by passengers who value more space. However, some bulkhead seats may have limited under-seat storage, and exit row seats often come with additional responsibilities and restrictions.
2. Seat position: Some passengers prefer window seats for the views and the ability to lean against the cabin wall for sleeping. Others may prefer aisle seats for easier access to the aisle, especially during long flights or if they anticipate frequent trips to the restroom.
3. Seat location: The proximity to certain areas of the aircraft may impact your flying experience. For example, seats located near the galley or lavatories might experience more noise or foot traffic. On the other hand, seats toward the front of the cabin may offer quicker boarding and disembarkation.
4. SeatGuru and similar resources: Websites like SeatGuru provide detailed seat maps and user reviews for different airlines and aircraft types. These resources can help you identify seats with specific advantages or disadvantages based on the aircraft layout.

Ultimately, the “best” seat is subjective and depends on your personal preferences and priorities. It’s a good idea to research the specific aircraft and seat configuration for your flight, consider your own needs and preferences, and choose accordingly.