Halo:CE - most fun singleplayer
Halo 2 - Best story + lore + Easter Eggs
Halo 3 - Best Multiplayer
Halo 3: ODST - Best atmosphere + Co-op
Halo: Reach - Best “next step” to the halo gameplays + uniqueness + best armors
Halo 4 - Best…uh…I’ll get to that
Halo: MCC - Best damn graphics I’ve seen + forge evolving
Halo 5: Guardians - Best worst story, Best gunplay