If you want the proper Halo experience, this is the Collection for you.
It includes the arguably best Halo games of all time, my favorites, and Halo 4.

Halo 3, Halo 3: ODST and Halo: Reach will always have a special place in my heart for being the Halo titles I played the most (and to this day love the most), and to anyone who never played through them:
What are you waiting for?
You're missing out on masterpieces.

Halo: CE Anniversary and Halo 2: Anniversary are excellent experiences in their own right, don't get me wrong, but some gameplay elements from the older titles are simply missing.

Why did I exclude Halo 4 from the praise you may ask?
Well, the Campaign is decent (So long as you have read 3 Books explaining the history of the Forerunners), but being the first full Halo by 343i you can probably see that they tried to leave their mark.
It's a neat Campaign, but as I always like to say: It plays like Call of Duty with a Halo skin - not my cup of tea, and the MJOLNIR designs are just straight up ugly-.

All of that said, I still heavily recommend the full package, and to play through ALL of the Campaigns.
You'll love it - I guarantee.

If you're tipping your toes into Halo for the first time, let me recommend you in which order to play them to have the proper canonical experience:

• Halo: Reach
  
• Halo: Combat Evolved Anniversary
  
• Halo 2: Anniversary
  
• Halo 3: ODST
  
• Halo 3
  
• Halo 4

Oh, did I mention that the Multiplayer part has proper progression, permanent Seasons with no FOMO, a custom Server Browser, and so much more?
You're guaranteed to get your fill, no matter if you prefer Single Player or Multiplayer (PVE OR PVP)

If you want the proper Halo experience, this is the Collection for you. It includes the arguably best Halo games of all time, my favorites, and Halo 4. Halo 3, Halo 3: ODST and Halo: Reach will always have a special place in my heart for being the Halo titles I played the most (and to this day love the most), and to anyone who never played through them: What are you waiting for? You're missing out on masterpieces. Halo: CE Anniversary and Halo 2: Anniversary are excellent experiences in their own right, don't get me wrong, but some gameplay elements from the older titles are simply missing. Why did I exclude Halo 4 from the praise you may ask? Well, the Campaign is decent (So long as you have read 3 Books explaining the history of the Forerunners), but being the first full Halo by 343i you can probably see that they tried to leave their mark. It's a neat Campaign, but as I always like to say: It plays like Call of Duty with a Halo skin - not my cup of tea, and the MJOLNIR designs are just straight up ugly-. All of that said, I still heavily recommend the full package, and to play through ALL of the Campaigns. You'll love it - I guarantee. If you're tipping your toes into Halo for the first time, let me recommend you in which order to play them to have the proper canonical experience: [list] [*]Halo: Reach [*]Halo: Combat Evolved Anniversary [*]Halo 2: Anniversary [*]Halo 3: ODST [*]Halo 3 [*]Halo 4 [/list] Oh, did I mention that the Multiplayer part has proper progression, permanent Seasons with no FOMO, a custom Server Browser, and so much more? You're guaranteed to get your fill, no matter if you prefer Single Player or Multiplayer (PVE OR PVP)