The Airbus A380 is clearly larger than a Boeing 777.
The number 777 is bigger than 747 The Aircraft Boeing 747 is bigger than the Boeing 777
the 777 is bigger than a a330
Currently they operate: Airbus A380, Airbus A340-500, Airbus A340-300, Airbus A330-200, Boeing 777-300ER, Boeing 777-300, Boeing 777-200LR, Boeing 777-200 Details taken from the related link.
yes because the 777 is a larger aircraft
Emirates
Yes. It is longer by about 3 metres and taller. There are different types of 747s and 777s. But if we compare the largest type of both planes, than the 777 is bigger.
Airbus A380, Boeing 747, Boing 777
Any where far away
The next new aircraft from Airbus is the mid-sized A350, comparable in size to Boeing 777/787. There are, however, plans to produce a slightly larger A380-900 variant of the A380 which would be about 18 ft longer than the current -800, boosting the seating capacity to 650 in standard 3-class configuration and 900 in all economy (compared to 525/843 for the -800). First deliveries of this stretched version are not expected until 2015 at the earliest.
Boeing 777
They are similar but in terms of passenger numbers and payload, the Boeing 777 is slightly bigger.