Because I feel like trolling Tagaziel, here is a newspost about Kotaku ranking the Fallouts. Just the main ones, no spin-offs, except she includes New Vegas, which is a spin-off. Spoiler: it goes 2-3-New Vegas-1.<blockquote>Full disclosure: this entry has a lot of personal significance for me—it altered how I viewed America and its politics, and it gave me a safe space to explore my sexual identity. But objectively, I see it as the pinnacle of what Fallout has to offer: a zany, post-apocalyptic game with an incredible amount of choice, a smart critique of American ideals—all packaged in a more cerebral genre than the modern titles. (It's a turn-based RPG.) The modern games feel too easy by comparison, and not in the good way. This is a game where you can choose to strategize a way to get to the final boss in 30 minutes (it's very difficult, but do-able)—or opt to explore for dozens of hours. And if you do decide to explore, you can do all sorts of stuff—from becoming a porn star or a made-man, to being able to talk to the AI responsible for ending the world. It's the sort of freedom and versatility that most modern games that brag about "choice," and "consequences" can't touch.</blockquote>Personally I think I'd go 1-2-New Vegas-Tactics-3-BoS (which I never finished), with 1-2 not far apart and Tactics-3 also close together as spinoffs. What about you guys?