I like the Dreamliner. The ride is noticeably smoother and the improvements to cabin air filtration, humidity management, cabin pressurization at lower altitudes, larger windows, and "mood lighting" make for a more enjoyable ride [0].
[0]https://backpackerlee.wordpress.com/2014/08/28/the-airbus-a3...
In fact at 38,000ft the A380's cabin can be held at just under 5000ft-equivalent, and not more than 7,000ft at 41k, which is much better than previous types. The 787 can hold 6,000ft to 43k.
Boeing's genius with the 787 was in marketing an airliner directly to the traveller for the first time since the Convair 880 back in the 1950s. Airbus were caught completely off-guard by that and never quite recovered until the later A350.
From what I hear and have read, the A380 is significantly quieter. To a degree that is eerie.
I recently flew direct from Denver to Narita in Tokyo. I got off the flight felling like it was the equivalent of a Denver to San Francisco flight in terms of impact to my body.
Personally I am not particularly tall or wide (174 cm) so I can make myself comfortable even in the cramped conditions of discount airlines. However if you're taller or wider, you're going to be checking seatguru for which airlines give you the most legroom. In general, the Airbus product for each segment (A320 vs 737, A330/A350 vs 787) is slightly wider than the Boeing product so if you're a big bloke it might be important to you.
For me, I've flown the 787 and the A380 but I actually like the old (Qantas) A330 best, for the simple reason that I like the window seat, and the less dense 2-4-2 configuration means I only have to climb over one person when I want to stretch my legs!
777s are better in my opinion generally not as cramped and much faster boarding and disembarking. The newer the plane the generally smaller the legroom or seat width. 777 are much older, but seem equally quiet - much quieter than a 747 or a340 etc..
787 seems a nightmare plane, with exception of one or two airlines such air india putting out 33" legroom in eco. 787 set a precedence to cram in as much as you can, look at Oman Air that outfitted their a330 with 34" in economy as the fleet standard several years ago, but on new dreamliners starting toc creep into its route map its 31", and they fly similar lengths, that's the future unfortunately - virgin and BA equally shit at 31" on 787
If you continue to desire A380, then Singapore is far superior, economy upper desk, service and seat walk all over Emirates A380, but if your in the states then any non-us airline will look like premium economy in comparison, even Easyjet ;)
Maybe, but it's a commercial flop for Airbus. That's not the plane most airlines need in the current market.