Both simple box+line diagrams and sequence diagrams are entirely dependent on the creator's skill at creating diagrams. I've seen plenty of confusing sequence

Both simple box+line diagrams and sequence diagrams are entirely dependent on the creator's skill at creating diagrams. I've seen plenty of confusing sequence diagrams. I guess it also depends on whether your team find it useful that diagrams depict low-level highly detailed interactions as opposed to higher level architectural concepts.