Favourite media villain so can be anime or western media

Iago. Nothing else comes close. Iago is a character who embodies evil without ever becoming an actual monstrosity. The most evil character you ever see in most media is a serial killer, a genocidal madman, or a megolomaniac. They're evil, but comically so. The Red Skull is always evil, but is a monster/demon stand in. He can't actually be human with his evil.

Iago is something very different. He manages to be the most vile, underhanded, scheming, twisted, traitorous bastard while basically keeping his hands clean. He lies to his closest friends in order to get them to kill each other, while posturing himself as "Honest Iago". He never actually becomes demonic, but his seething hatred is always honestly conveyed only to the audience, whom can do nothing to stop him. Connor from The LotusEaters recently said that even Iago was judged a bit unfairly given that Othello was a Moor, whom the Spanish and Italians would have prejudice against naturally due to the conquest of Spain. But that deflects the fact that Iago postures himself as Othello's best friend in order to try and incite him into killing his own wife, in order to kill him with guilt and grief. For that, Iago is a masterful villain who always seems to maintain his human form, but possessed by a hatred that can't really even be rationalized. What he does is far worse than what any simple prejudice or stalled ambition could rationalize.

Favourite gaming villain

Tom Clancy called it.

I'm gonna go with John Brightling: head of the Horizon Corporation and secret primary antagonist in Tom Clancy's Rainbow Six. The man appears to be a billionaire philanthropist and advocate for environmental protection. To Neoliberals, it's the kind of guy they want to be. He's a perfect Globalist that believes it is necessary to bring the world together using corporate wealth and international co-operation to cure diseases and end the threat of Climate Change. He's very concerned about Peak Oil. He's personally building a brighter future. Why, he's even built biomes across the world to study how best humanity can live with the Earth.

Unfortunately, he's entirely ideologically possessed by the most insane and rabid elements of the environmentalist movement. In his younger years, he became a member of a Left-wing terrorist organization called the Phoenix Group, but rather than engaging in direct acts of terrorism, he became a patron for the group with his businesses. He's secretly an anti-natalist, accellerationist, terrorist. He's a billionaire mogal who's "penetrated" the multiple national governments across the world with his wealth and influence, such that the Phoenix Group, and Horizon Corporation, are effectively one and the same entity. He placed Phoenix Group ideologues and terrorists into governments across the globe to help facilitate the downfall of civilization and the mass depopulation of the world.

In addition to his efforts at generally destabalizing the world and using the violence to secure further and further control over civilization... well, read this and tell me if it sounds familiar: "In early 2000, Horizon opened a research facility in Congo, Africa with Dr. Catherine Winston as the lead researcher. The facility was opened as a result of Horizon being contracted by the World Health Organization to find a cure for an Ebola Brahma epidemic that had been decimating West Africa's cattle population. Brightling saw it as a opportunity to modify the virus for his plans. He then used Horizon's charity work with the inner-city homeless as a front for a kidnapping ring to acquire experimental subjects for testing the pathogen at a facility in Idaho."

That's right, he used a grant from the WHO to develop a bio-weapon based on the Ebola virus, in order to kill off the majority of the world's population. The biomes he built using US Taxpayer money were actually bio-weapon bomb shelters that he and his acolytes could use as the weapon killed off the majority of the human population.

Even though you are part of the Rainbow Program, an international counter-terrorism operation designed to defeat international terrorism from all of it's sources, you realize that all the governments you are attempting to help have already been subverted and infiltrated by the Phoenix Group. Including the US Secretary of State, who is an older white woman with significant political ambitions and a ruthless villain. Sound familiar yet? Anyways, you basically have to go rouge without tipping your hand to any of the governments that you are aware of Brightling's plot, until you launch a major operation to secure the bio-weapon's set to detonate at the Olympics, and then raid Brightling's biome compound in South America.

John Brightling's end-game speech absolutely could be pulled from the front of the WEF today, likely written by Klaus Schwab himself. Just Stop Oil would honestly recruit him as a member.

Historical Villain:

Uday Hussein.

Overly entitled rich boy who deserved the death he got: having 500 lbs bombs dropped on his bunker, not to kill him from the blast, but to use the percussive force to give him so many concussions that his brain fucking liquefied. I'm not sorry, he fucking had it coming.