So, do you like Halo as a series or not? If you like the entire Halo main series select "The entire main trilogy". If you only like one or more games select them accordingly. If you're a Halo nerd, select "Every freaking Halo game". Personally, I like the entire main trilogy. I didn't like Halo Wars. Kurt-051 demands you to select "Every freaking Halo game!"