HBO has some big-ticket items, but Netflix is more consistent in dropping new series for me to try. It's still my go-to place for content since there's more than I have time to watch. I just looked up their list of original content[1] for refresh my mind, and quite a few were extremely good in my opinion.
- House of Cards: I only got a little into the second season before I got busy, but what I saw was high quality and interesting.
- Orange is the new Black: My wife still loves this series
- Stranger Things: An honest to god phenomenon. The second season was weaker IMO, but I'm not sure how it could be as good as the first. That's a high bar to hit.
- The Crown: I caught a lot of it as my wife watched. Pretty good, even if a blond Doctor Who was somewhat distracting.
- A Series of Unfortunate Events: The kids liked this, as some of them are going through the books.
- Altered Carbon: Refreshingly good science fiction. Main character casting a little odd, since it's more obvious now than it was when I was younger how odd and slightly off-putting it is to cast someone with the physique of Arnold Schwarzenegger as a science fiction lead. At the same time, it's now fitting (or a trope) because of all the science fiction he helmed in the 1990's.
- Lost in Space: Interesting, but ultimately spoiled slightly by the contrived plot. Better writing and this would have been extremely good rather than worth watching, but slightly disappointing.
- The Haunting: A nice interweaving of stories, and creepy series. I liked the ending. I have friends who didn't.
That's just from the drama section of the list. There's plenty in the other sections too, such as Maniac and Russian Dolls which I watched recently that were good, and documentary section has a bunch of good things I've seen as well. Some of he Marvel series' were pretty good too (season one of Jessica Jones was excellent on so many levels).
That's a small fraction of what they released. Looking at the list now, there's no way I would cancel Netflix before Hulu, and probably HBO also. There's things I want to watch on those (for different reasons), but now that I examine it, it's clear that I use and value what Netflix is giving me way more than the other two.
1: https://en.wikipedia.org/wiki/List_of_original_programs_dist...