Actually stats may not matter when it comes to steemit, I think travel, cryto and food are contents that people love, because before you do or produce these contents you'll have to had put in a whole lot of work in other for these kind of content to be worthwhile.
However from my time on steemit, I've found out that TUTORIALS are the kind of contents that people are more interested in. When I talk of tutorials I mean HOWTO that is tutorials on on kinds of topic that actually shows people how some particular things are done for example @gringalicious does tutorials on how to make different kinds of food @edgsart makes tutorial showing people how to draw various kinds of animal.
To show you that this content is actually sought after @curie takes time to UPVOTE tutorials that are very educative as well.
So I think tutorials top the list of the contents that majority of people wants to see because of it's timeliness and value, in my opinion
Good to know, Thank you!