Must have 360 games so far?

Here are my must owns in ranked order:

1. Oblivion

2. Gears of WAr

3. Halo 3

4. Bioshock

5. Burnout Revenge

6. Tomb Raider Legends

7. Dead or Alive 4

Honorable mentions but not must owns: Lost Planet, Dead Rising

I also think Mass Effect is definately gonna be in my top 3 if not number one game for the 360. KOTOR was my favorite game for the first xbox, and ME looks great.

Is there really anything called "must have"? Let's call this thread "favorite games" instead, because everyone has different tastes.

1- Bioshock

2- Double Agent

3- Halo 3

4- Oblivion

Out of those that are out now, those are my favorites. As for games that aren't out yet;

5- Assassin's Creed

6- Mass Effect

7- Orange Box

bearing in mind i only have a very limited game catalogue, mine are

1/ gears

2/ bioshock

3/pro evolution 6

Gears.

Halo 3.

Assassin's Creed.

Bioshock.

and the games i am yet to own

1/ halo 3

2/ orange box

3/ call of duty 4

4/ mass effect