The list and ranking formats are generally tired. How many ways can you write a magazine or newspaper article about the Top 10 [fill in the blank]? They're especially overdone in lifestyle magazines, where it's considered hack to have a list with less than 50 entries. The result are absurd numbers of mundane things, like "73 Things You Can Do With Your Tongue."
That said, I find rankings and lists useful when they're about a topic I know nothing about. A case in point is this recently published list of Top 10 Modern Korean poets. The rankings don't matter; I find it useful because it's a starting point for exploring the topic. I may discover eventually that I don't agree with the list at all, but without it I'd be overwhelmed by the total number of Korean poets and wouldn't know where to start.