If I was to rate based on what I actually watched, it'd probably be fairly high, and by fairly high I mean a 6 or 7.
The only things I really watched this year were the Rumble, which I recall thinking was fine and if nothing else, gave me Asuka vs. Lynch ending in Asuka making Lynch tap out, and WrestleMania which was too damn long but had a lot of fun moments with it. Despite essentially enjoying most of what I've watched, it's been very easy to stay away from the product because, well A. there's too damn much of it, even when I watching regularly I could only bother with the youtube versions of the segments I cared about and B. because almost all of what I've read they've been doing has pushed me away.
There are a few exceptions, NXT generally being one, I like heel Bayley, and of course any success for Asuka piques my interest, but there's nothing that's really compelled me to watch and at this point, I have pretty much zero interest in watching WrestleMania (this isn't entirely on WWE, part of the reason I watched Mania annually was because of a friend who has since moved to a different state, and I don't have a Network account).
I guess if there's a grander point in here, WWE is pretty good if you watch a small amount of their content and don't really care two fiddles about the narrative behind the matches. Granted, I cared about the personal narratives of certain wrestlers, namely Kofi Kingston (mainly watched last years Mania because Kofi winning the WWE title was basically a guarantee).
