Not sure how much the Culture novels have to do with Halo actually. Sure there are some ringworlds, but they're just part of the scenery.
These novels are mostly interesting because they deal with problems not usually common in SF - this civilization is quite close to omniscient and omnipotent, so dealing with problems is less about their possibilities and more about the tricky stuff, morals and consequences and such. With Master Chief it's mostly about shooting his way out Or, when compared to Star Trek, Picard and Kirk would be kinda conservative in how they deal with Prime Directive issues
These novels are mostly interesting because they deal with problems not usually common in SF - this civilization is quite close to omniscient and omnipotent, so dealing with problems is less about their possibilities and more about the tricky stuff, morals and consequences and such. With Master Chief it's mostly about shooting his way out Or, when compared to Star Trek, Picard and Kirk would be kinda conservative in how they deal with Prime Directive issues