China would like to back a candidate that is bad for the US but good for China but sees neither in Biden or Trump. Instead they see Trump as bad for China AND bad for the US and Biden as good for the US and at least not bad for China so prefer Biden to Trump for that reason. Russia likes Trump because he is bad for the US and bad for China which is also why North Korea is for Trump. Iran is under no illusion that either will be good for Iran but hate Trump no matter what. The Europeans think Trump is an idiot. The Asians are of mixed feelings as they worry about China.