I haven't read any spoilers, but seeing peoples' response to the finale of Coven is a little off-putting. I have Murder House and Asylum on Blu-ray and, although the former was so-so and pretty decent in places, I really enjoyed Asylum...I just fell in love with it. Obviously I'll watch it at some point, but how does Coven actually rate against Asylum (or even Murder House)? I just don't want to go into it assuming it will be better but then come away from it with my expectations thoroughly curbed.
I really didn't care for Asylum. In fact I probably hated it. I started out hating coven even more, but then it won me over.
Overall I liked coven more than asylum I guess.