Whether the "front" or "back" of the plane is "better" depends entirely on your travel priorities: speed vs. safety and storage. The front of the plane is widely considered superior for convenience; it is much quieter because you are ahead of the jet engines, you are the first to deboard (critical for tight connections), and you are served meals and drinks first. However, the back of the plane is statistically proven to be the "safest" area in the rare event of a crash, according to decades of NTSB data. Furthermore, because the tail of the plane is the last to fill up, you are more likely to have an empty middle seat next to you on a half-full flight. The back also provides easier access to the galleys and lavatories, and you are closer to the flight attendants for service. For those who suffer from motion sickness, neither is ideal; the middle (over the wing) is the "best" for stability, as it is the aircraft's center of gravity and experiences the least amount of "pitch" and "roll" during turbulence.