What would you score each Halo game in the 1 to 5 scale?

[The_God_of_War]

Halo CE- 6/5

Halo 2- 4/5 (I never played online, would probably be higher)

Halo 3- 4.5/5

Halo Wars- 4/5

Halo 3: ODST- 3.5 or 4/5

Halo Reach: looking like 5/5