1. I would like to see A380 J seats on entire fleet in J - but I agree that service looks better in 777...
2. Add bottle of cheap mineral water waiting for each pax in Y
3. Better availability of upgrades/rewards flights
4. the more difficult one: change ticketing policy: if someone bought a ticket and later airline is going to make ticket sale and exactly the same flight is now more then 20% cheaper - best airline would return money :> (they can call it 'good deal guaranteed' etc)