1. Graphical marvel. The game is drop dead gorgeous
2. My favorite roster of any MK game ever
3. Customization allows for a lot of cool aesthetics on characters traditionally locked to a couple colors and costumes
4. Sound design / foley is top notch for fights (weapons, hits, blocks, specials, bones crushing, organs splatting, etc.)
5. The most alive the cast has ever been. Facial mocap, animations, styling, costumes, voice acting, voice lines, intros / outros, between-round taunts -- the whole roster has been thoroughly characterized and I love it