Ooo, I have a whole lot to recommend.
Here is my list:
Angel Beats (In my top 10)
Attack On Titan (Good until just past halfway, then it loses speed)
Aiura
Bakemonogatari
Ben-To (Funny, Action-packed, Must watch)
Black Rock Shooter
Boku Wa Tomodachi Ga Sukunai (Season 1, One of my favourite shows ever)
Boku Wa Tomodachi Ga Sukunai NEXT (Season 2, One of my favourite shows ever)
Chuunibyou Demo Koi Ga Shitai (2 Seasons + Movie)
Code Geass (Must watch)
Date A Live (2 Seasons, interesting and funny and loads of action)
Deadman Wonderland (Must watch)
Fairy Tail
Highschool DxD
Hyakka Ryouran Samurai Girl (Season 1)
Hyakka Ryouran Samurai Bride (Season 2)
Hyouka
Is This A Zombie
K-On! (A must watch, 2 seasons + a movie and two comics that goes on after the show ends)
Kyoukai No Kanata
Love Hina
Lucky Star
Maji De Watashi Ni Koi Shinasai
Mayo Chiki (Number 2 show for me, still insanely funny)
Mayoi Neko Overrun (Really funny)
Naruto
Nichijou
School Days
School Rumble (I still need to get Season 3 and the last few eps from Season 2)
Watashi ga Motenai no wa Dou Kangaetemo Omaera ga Warui
Welcome To The NHK
Yozakura Quartet
Also, there is a "similar" type of thread.
It more about what er are currently watching and it's a good place to find out about some new shows.
http://www.awx.co.za/forum/view/id/532/lastpage/t.html#68962