I don't want to always be THAT GUY, but I think this is a [omitted adjective] exercise and almost serves no purpose. From a technical point of view- there's the skewed questions and no differentiation between the web-comic-artists and the actual readers.
If you want to know what readers prefer to read, you should look at what they are already reading (the most) and even that is flawed because you don't know the balance between any amount of quality series. A REALLY GOOD series that's number 1 might be the top because it's well done, not because that's the 'best genre' for you to make a comic in.
Secondly, if you're diving in to THE MOST POPULAR genre, you are setting yourself to compete and make a lane for yourself in a crowded field. AND readers are already (probably) reading their fill in that genre. Why would your more-of-the-same stand out and do well?
You might be better serving a niche interest and being one of the few doing something different/unique than jumping on a...you get the idea....
On a PERSONAL (I mean, me talking about me-thinks stuff) level, I think it's a bad, bad idea to leave your creative and productive decisions to some random forum survey. It's hard enough to be consistent with anything and actually FINISH a project.
As an artist, you need to love all the aspects of your work and DEEP DIVE into your material. You need to want to tell the stories and express whatever messages you have in you. In some instances, the ONLY thing that will keep you going is how much YOU love your work. If you remove that.....
There's more to consider, like- what are you actually good at?
Are you already past all the technical challenges?
Are you ready to launch a series or should it be short stories (or a finite series) until you're ready and, and even worrying about what exact genre or direction to start with- is a bit of a waste since you can explore them all over time.
I suggest you DO WHAT YOU WANT and only consider a more business-minded approach when you have true business concerns to worry about. I say that because this (or any) survey is not really suited to gauge your future success.
My 15 cents.
Don't hate me.