A fleet of A380's cannot compare with a mix fleet of A350 B777 B787, Qatar will dismiss all A380 with immediate effect, A350 and B787 burn almost the same fuel of an A321 and the B777 is one of the most successful machines ever, it carries a huge amount of cargo in the belly making it profitable even when flying with no pax, carrying only cargo.
A fleet of 120 and more A380's is a suicide, they are the less profitable machines ever built, you cannot compare at all, imho qatar is a winner no doubt.
A380 is not even good for cargo, it's only amazing for passenger comfort.. Emirates is in deep s.... It was ok many years ago, those times are long gone, it was a very bad planning, they have a large number of B777 that maybe will save the company otherwise...