My favorites would have to go in this list:

 

Dragon Ball Z.

 

Blue Excorsist.

 

One Piece.

 

Jojo's Bizarre Adventure.

 

Bleach.

too many to count. heh.

persona 4 the animation (anime of a great game. works great.), sword art online, pokemon (your a nobody if you've never heard of it.), clannad (no joke it made me cry.), to love ru, love hina, naruto.

Sorry, but there are already threads for this:

http://kh13.com/forum/topic/46315-whats-your-favorite-anime/

Favorite Anime Thread

 

http://kh13.com/forum/topic/46555-whats-your-favorite-manga/

Favorite Manga Thread

 

http://kh13.com/forum/topic/39089-official-anime-and-manga-recommendation-thread/

Anime/Manga Recommendation thread (for more in-depth posts as to why you like them).