Trump has a weird obsession with Iran and China, and is definitely worse for them. China wants the US to be predictable so they can adjust their policies in a rational way to respond, and Iran wants things to go back to how they were under Obama because their situation was improving. Both have reportedly said they want Biden to win.

Maduro on the other hand, has said he doesn't give a shit who wins because the Democrats are bloodthirsty Imperialists as well, and KJU has called Biden a rabid dog while relatively amicable to Trump. Different specific countries have different interests, but if we are being honest, the LATAM perspective is the most important currently. A full scale war with Iran is very unlikely and one with China is never going to happen, but coups, fascism and war in LATAM are very real threats. Also, rising anti-imperialism and anti-capitalism need to be protected, and South America is the epicenter for both. The situation is precarious there.

Overall, I can't really say which I prefer because it's like choosing between people I love and care about getting fucked more or people I don't know but still care about getting fucked more.