maybe thanos should survive because of tech
He survived purely by durability.
but supes who's power source is sun light surviving a black hole (which is more powerful then a sun) is crazy how can you have more power then your source of power.
Superman uses the sunlight as a catalyst for further processes within him. The energy from light that falls on him wouldn't even be enough for him to operate at the power level of his animated series version let alone how he's portrayed in the comic.
Also a black hole doesn't produce more energy than the sun it came from. It has only a fraction of its mass. The black hole Superman wrestled was only dust sized at that. Before we go through the whole black holes can't be that small debate, we've already had it and miniature black holes do exist.
I wish we could use Anime characters in the vs main forum. Screaming that everyone is a fanboy wouldn't go down well there.