Season 1 (later called Murder House) - This was the only season that truly made an attempt to be "scary", and it pulls it off in a few parts. I fell in love with the show as I watched each week, as I think everyone did.
Asylum - And then this came out. My excitement was very high - and I never finished the season. I was just completely bored by it. I've thought about going back to watch again, but I just don't wanna, and you can't make me!
Coven - This one turned out to be one of my favorites. This was when the show took a bit of a turn for the truly absurd, and I think it benefits greatly. It helps that I like a witch story, no matter how silly it turns out to be. I also started my little crush on Emma Roberts here.
Freakshow - This is my favorite, followed by Coven. I love a carnival story, and freaks are divine. The music was great, and Twisty is immortalized on my eyeballs.
Hotel - Lady Gaga was surprisingly good - at least not bad anyway. This season was also the sexiest by far. It is a disjointed mess, but so are they all. Evan Peters character in this season should have won awards.
Roanoke - Haven't seen it. I don't watch things on TV, so waiting to stream it. Maybe you guys can tell me if it is any good.