There are numerous examples of things going awry when it gets too big, such as the famous sinking of the Titanic or the Hindenburg disaster. I am making this a general question, but specifically, I would like to know if something went wrong requiring the aircraft to make an emergency landing, would it make a huge difference if I were on board an A380 compared to a Boeing 747? I am aware that the length of the runway is not a major concern, but I am not sure about other factors such as weight that may limit its options during an emergency landing. Of course, it would be good to have a canonical answer too.
As I am interested in the difference between A380 and Boeing 747, I found the following comparison from Wikipedia:
In the 1990s, aircraft manufacturers were planning to introduce larger planes than the Boeing 747. In a common effort of the International Civil Aviation Organization, ICAO, with manufacturers, airports and its member agencies, the "80-metre box" was created, the airport gates allowing planes up to 80 m (260 ft) wingspan and length to be accommodated. Airbus designed the A380 according to these guidelines, and to operate safely on Group V runways and taxiways with a 60 metre loadbearing width. The U.S. FAA initially opposed this, then in July 2007, the FAA and EASA agreed to let the A380 operate on 45 m runways without restrictions. The A380-800 is approximately 30% larger in overall size than the 747-400. Runway lighting and signage may need changes to provide clearance to the wings and avoid blast damage from the engines. Runways, runway shoulders and taxiway shoulders may be required to be stabilised to reduce the likelihood of foreign object damage caused to (or by) the outboard engines, which are more than 25 m (82 ft) from the centre line of the aircraft, compared to 21 m (69 ft) for the 747-400, and 747-8. The A380's 20-wheel main landing gear
Airbus measured pavement loads using a 540-tonne (595 short tons) ballasted test rig, designed to replicate the landing gear of the A380. The rig was towed over a section of pavement at Airbus' facilities that had been instrumented with embedded load sensors. It was determined that the pavement of most runways will not need to be reinforced despite the higher weight, as it is distributed on more wheels than in other passenger aircraft with a total of 22 wheels. The A380 undercarriage consists of four main landing gear legs and one noseleg (a similar layout to the 747), with the two inboard landing gear legs each supporting six wheels.
Looks like some additional integration effort is needed for airports to handle A380 planes, but not as much as I thought it would that makes finding a suitable airport to land during an emergency problematic.