One could say that the A380 is as ugly as sin, but that's unfair to sin.
It's an airplane that not even a mother could love. It killed it's mother in delivery.
It looks like a 747 and a C-5 did a lot of acid and had a night of wild, illicit maintenance, then did a lot of drinking and drugs, and went on a ten year eating binge in a fast food joint full of toxic waste, before giving birth to the A380, and that's on a good day. Ugly is a compliment.
Call it a beast only if there's no love for the beast.