I happened to catch the 1,500m run prelims last night, and that got me excited about watching some running here. The 800 was my race in both high school and college, so I definitely hope to catch that. But I think when it comes to drama and excitement, the 4x400 is the greatest event. That's the one that gets me pumped up, wanting to race myself. In college I did run that event, but always on the B team. Our A team won nationals one year, so I think cheering for them helped build that kind of anticipation for me. That plus the fact that I put way too much pressure on myself in the 800, while there was none in the 4x400--for an 800 runner, a single lap is just a sprint with no worries about strategy or pacing, both things that ended up twisting me up before my 800 races. My favorite experience from the 4x400, though, was one time that we had a 4xDan relay.
So I know nothing about anyone competing in it for any country, but I'm hoping to catch it regardless. I've been conditioned to see it as the final event of a meet, so after watching it, I'm sure a part of me will feel the Olympics must be over, whenever it ends up taking place.