Yowamushi Pedal, Inazuma Eleven, Hunter x Hunter (2011) & Detective Conan.
Mine are - My Little Monster; Vampire Knight; Full Metal Alchemist: Brotherhood; Tokyo Ghoul; Attack on Titan; Black Butler.......
Prince of Tennis
Special A
Fairy Tail
Attack on Titan
Detective Conan
Dr. Black Jack
and a lot more ......
K-On!, Kaichou wa Maid-Sama, Durarara, all Ghibli movies xD 
Aria the Natural (The second (and best) season of Aria the Animation)
  1. Sengoku and gakuen basara
  2. Free!
  3. Shingeki no kyojin
  4. Sword art online
  5. Uta no prince
  6. Jojo no kimyou na bouken
  7. Love live
  8. Fate(anime series)
  9. Touken ranbu
  10. Fairy tail
  11. Natsume Yuujinchou

My favourite anime series.

 goldenseal50:
Avitar the last airbender

That's not even an anime , that's a Nickelodeon cartoon.

1.Hajime no ippo

2. Clannad

3.Natsume Yuujinchou

4. Non non biyori

5. K-on

6. Koi wa ameagari no you ni

7.Ore monogatari

8. Gto

9.Ajin Chan wa kataritai

10.Koe no katachi

My Top 3

Hunter X Hunter

Stein's Gate

Welcome to NHK

There are a lot of which I like but two that caught my heart and which I can call a real masterpieces are Utena and Haibane renmei.

最近楠雄のさいなん - The Disastrous Life of Saiki K

1. Jojo Bizzare Adventure : for the manliness

2. Non non Biyori : for the cuteness

3. Hinamatsuri : for the fun ride

4. Danshi kokousei no nichijou : for the laugh