The engrossing fantasy setting that immerses you on a level that nothing else has really done. Its progressive stories that integrate real world elements eg. FFVII n corporate militarism, environmentalism and eco-terrorism. They really serve to bring a level of complexity, maturity and weight to games that really hasnt been seen before n/or expected in n of its medium ie video games. They're top notch when it comes to blending everything from grand music, entertaining, fascinating in-depth characters, exotic, vivid, living-breathing worlds filled with unique ppl, creatures n possibilities crafted with epic storylines that provide more backstory and lore than most books/tv shows/movies. They evoke this "I'm on an adventure!" vibe that you won't find in many other games. Generally speaking, Final Fantasy is an experience.