Thanks for taking the time to share your findings! As a new Steemian, I'm still trying to wrap my head around the most engaged and profitable topics here. I've browsed several of your posts now, since I want to come up with a large list of titles so I never hit that dreaded writer's block!!
Looking at your table, wouldn't you ideally want the number of comments in the topic to match or surpass the amount of posts? I know that won't guarantee engagement on your own posts, but doesn't that increase your chances? Or maybe I'm looking at the data all wrong, which is totally possible ;)