Originally Posted by
Jalinth
What were you using as a capacity figure for the A380 and 77W? I'm seeing around 850 capacity for an A380 and 550 for a 777-300 using all economy seating. The A380 is also longer ranged. So the A380 has a around 300 more passenger spaces, and a somewhat larger range. If even if normally confirmed (with more than Y), you still have more people, especially more F and J for paying customers.
The 850 capacity of the A380 is only theoretical. Most airlines have it configured for less than 600pax (still 150-200 more than a 77W). The reason: 800 people cannot be evacuated in a given time as in case of an emergency.
About the range: according to this page
http://en.wikipedia.org/wiki/Non-stop_flight
the longest long haul flights are operated by a 777 or 340. The longest A380 is the 12800 km (still impressive) LAX-MEL flight.