Microsoft's Xbox Developer Direct has ignited excitement for the future of Xbox gaming. But which franchises reign supreme? This tier list ranks Xbox, Bethesda, and Activision Blizzard game series (with multiple entries) based on enjoyment and impact, acknowledging that not every series is included.

My personal S-tier includes Doom, due to its exceptional first-person shooter gameplay (with Doom: The Dark Ages promising more of the same), and Forza Horizon, consistently delivering top-tier racing experiences. Halo, while featuring incredible campaigns in Halo 2 and 3, suffers from recent inconsistencies, hence its A-tier placement. My preference for Fallout over Elder Scrolls is also reflected in the ranking.

Disagree? Do you champion Gears of War or Fuzion Frenzy? Share your own Xbox game series tier list and compare your rankings with the IGN community! Feel free to comment on any omitted series and your reasoning behind your choices.