Which Halo is the Hardest?

[yo_john117]

Dark_Lord_2008 said:
Halo games on Legendary mode are easy compared to Call of Duty series games on Veteran mode.

I'd have to disagree with you they are all easier except for WAW which was a complete bitch on Vetern mode. Well I should clarify....they are harder then Halo, Halo 3, and ODST but easier then Reach and Halo 2