Warcraft Logs are pretty great, right? I think some of my favorite times are after a raid and someone asks about, say, damage and four or five of us say, “Let’s take a look”. It is really fun to do.
I’d say that looking a parsing and trying to compare to the top guy in your class can be deceptive. The reason is that top guy did the fight in two minutes while our (more typical) raid team did the fight in five, for example. So, tracking stuff can get skewed easily, if that makes sense.