So, most of the time people talk about tropes or cliches found in video games in a negative way. This thread is to talk about those common themes you actually enjoy whether it be in the story or in the actual gameplay.
For me, one of the coolest would be light vs dark. Sure it's simple and done infinite times, but I still love it. Either when it's alternate worlds like in Metroid Prime 2, Link to the Past, or Twilight Princess or just alternate characters like pretty much every game series ever has had like Liquid Snake, Star Wolf, Dark Link, Dark Samus, Dark Pit, and all those other dark characters. I think this theme usually makes for a very interestkng story and usually has cool gameplay and aestetics involved.
Another recurring theme I really love has to be enemies that don't really die. This is less common, but it can still be seen everywhere. I think it makes things far more epic when you meet an enemy mulitple times and they never seem to just die. Sometimes this can be negative when a boss battle is pretty shitty and repetitive (like the Imprisoned from Skyward Sword), but at other times it can be fantastic, like Ghirahim (also in Skyward Sword). A few other great examples of this include Ridley, Dark Samus, King Bulblin, that one mini-boss from Metroid Other M that kept coming back and only died after like 15 times and it had horns or something (can't remember it's name), Ganondorf (sort of), and many more that I can't remember at the moment.
Sort of related to that trope, I adore the trope of being an underdog who builds their strength up to unbelievable amounts and fights something of unbelievable power. This happens in nearly every Zelda game to date. Zant in Twilight Princess and Ghirahim in Skyward Sword are good examples. They're top-tier evil villains with power you can barely imagine that were built up for the whole game, and then after going through loads of shit, Link comes and tears them to pieces by barely trying. Being more specific, usually JRPGs come to mind when I think of this trope. Like when you beat the shit out of gods in FF games and Xenoblade. I just find it thrilling.