Haven't logged on for a while, Post anime that you thought it would suck but you actually liked watching it

Fairy Tail. At one point a lot of people talked about it, I usually don't care for mainstream stuff, but Fairy Tail was awesome.

Full Metal Alchemist. This one isn't my style at all, I usually hate anime like it. But because of Lust I enjoyed it way too much.

Another...i really really hate horor animes but another was just so disgusting with all the bloody deaths in it but i really liked the story and the characters:)and now i sometimes miss them...

I personally thought at the beginning that Free! was going to be this boring sports anime with hot looking guys. After watching it though,I honestly loved it. The characters were amazing. I liked their development. The animation was really good and it helped the anime as well. Oh and the plot was really good. I also loved how it ended. I loved how it showed in the ending about certain character's growth. I just honestly loved it a lot.

Two that I can think of are:

Mahou Shoujo Madoka Magica ~ Picture ~
I'm not fond of magical girl anime but this one is one big exception. The story was deep, the characters were relatable, and the series was just overall beautiful. Need I mention that it is a deconstruction that mixed in psychological horror elements which I am quite fond of.

Shingeki No Kyojin
Blame the popularity on this one. I thought it was going to be another SAO but I adore this anime. The characters are all interesting, the dystopian plot was compelling and the animation is just gorgeous.

Kekkaishi.

I thought that Angel Beats! was going to be dumb, but I enjoyed it very much and it ended up as one of my favorites.

The World God Only Knows.

I actually found it pretty humorous and entertaining to watch despite how it's not usually the type of anime I watch.

My friend told me to watch Canaan, at first I was reluctant to it since the story didn't interest me at all but after watching I really liked the plot and the characters :)

Code Geass
I don't really like mecha and I couldn't into the anime at first
THANK GOD I stuck with it, because now it's definitely in my top 5!

Attack on Titan :D

I liked it a lot, and I can't wait for the Second season AND.... the movie :)

Shingeki no Kyojin

i'm not actually a big fan of shounen or action but i thought it was really good :)

I thought that I wouldn't be able to watch Dog and Scissors for very long. Nothing ever really important ever happened in the series, and it was overall pretty dumb, but for some reason the idea of not watching the next new episode just seemed wrong.

Yugioh Zexal

I had heard bad things about this anime, and for the first few episodes, it looked like it was going to be bad. However, as it I watch it most Saturdays, I've grown to like it.