mjoelnir wrote:You can put 440 passengers in a A330-900 and you can put 440 passengers in a 787-10, that are maximum numbers.
As pointed out they are theoretical maximum numbers and don't apply to the 1000+ aircraft in service. It is irrelevant and It only applies to a handful of aircraft.
Airbus could fit a dozen doors and make the exit limit 600 on the A330. You could fit 9ab with 26" pitch using slim seats and move all the toilets and food prep areas underneith. You would easily hit 500+ seats. So based on this the 777-9 is the direct competitor to the A330-900. All hail the almighty A330!
As already pointed out many times by multiple users they aren't comparible. The 787-9 seats more seats than the A330-900 let alone the 787-10
Both existing cabins with their business cabins replaced with economy seats.
So the 787-10 seats far more than the A330-900. If you fit the same amount of seats in both the 787-10 will be far more comfortable.