I’d probably give them something I love: Chrono Trigger, Victoria 2, Xenogears, FF6, 7, 8, Super Mario Galaxy, Breath of the Wild, or Dwarf Fortress. I’d rather my enemy learn and become a fan of a game I love rather than use games to make them suffer through some game I hate.
Although, perhaps I’d make them play a game that forces them to see the error of their way. I generally don’t make enemies with people unless they are racist/nationalistic, are cruel to animals, or are destructive to the environment. It might be best to make them the play a game that has them live the experience of the people they have hatred toward. Or some kind of educational purpose for them. Although, I find books are generally much better at this, but games are becoming increasingly more artistic and have value in expression - and aren’t just jumping and shooting things.