These threads remind me of those sad "Batman vs Captain America" or "Alien v Predator" stuff elsewhere on the internet.
A380, biggest in class - Yes.
SC, fastest in class - No.
A380, anybody ordering - Yes [100 so far].
SC, same question - No.
A380, any airports suitable - MUC and FRA for two, LH building like mad.
SC, same question - Not unless someones building jetways that are double jointed or summat.
Now, A400M vs Sonic Cruiser - possibilities for "fictional contests" there...