Is it a cop-out to say the Star Wars universe because there’s a galaxy of possibilities? It feels like a cop-out. I can’t even name my own setting (The World of Calliome) because there are decisions I made when writing the first novel set there that I wouldn’t make now. I don’t want to ret-con these decisions because the books I wrote then were the best work I was capable of producing at the time and it feels cheap to change stuff from back then just because I have a better idea now.
Yeah, the Star Wars universe. If I want all out Sith vs. Jedi, I can just play in the Old Republic, some 3000 years before the films. If I want scum & villainy smugglers, I can play in the Rebellion era Corporate Sector. If I want conventional war with space wizards, I can play in the Clone Wars. It can handle exploration if you play in the Unknown Regions or the Rishi Maze. Go to the Core Worlds for political intrigue. I could go on, but I think you get the point.
Of course, not all settings are appropriate for all type of games. You COULD do horror in Star Wars, but I think it works better in Victorian-era Earth or even the first half of the 20th century (somehow, at lot of the tropes of horror games start to break down once you get cell phones and the Internet). Espionage works better (for me) during the Cold War on Earth (though there was a Cold War during the Old Republic, as seen in the first 2/3rds of The Old Republic MMORPG). D&D’s various settings, especially Greyhawk and Forgotten Realms seem more suited to dungeon crawling adventures than an Arthurian-era Earth setting would be.
Really the answer is: it depends on the game.