Gurren Lagann, Kekkai Sensen, Clannad, Little Busters, Angel Beats, Inferno Cop, Rokka no Yuusha, Ushio to Tora, Aria the Animation, Gintama, Kanon (2006), Air, The Melancholy of Haruhi Suzumiya, Legend of the Galactic Heroes, K-ON!, Code Geass, Fate/stay night UBW and/or Fate/Zero, Hunter x Hunter (2011), Barakamon, Space Brothers (I NEED THE MOVIE), Mushishi, Bakemonogatari, Katanagatari(I kinda want to watch this again), Steins;Gate, Hidamari Sketch, Jormungand, Arakawa under the Bridge, Psycho-Pass, Uchouten Kazoku, Nagi no Asukara, Jojo's Bizarre Adventure (2012/Stardust Crusaders), Kyousougiga (TV), Cowboy Bebop, Samurai Champloo, Neon Genesis Evangalion, Space Dandy, Spice and Wolf, Log Horizon, No Game No Life. I can go on
Off topic, I realized four to five years ago, the top anime for getting into anime was stuff like Haruhi, Code Geass, K-ON!, and Death Note. Now its shifted to stuff like Attack on Titan, Sword Art Online, Tokyo Ghoul, Gintama(Wow, has this soared in popularity) and Fate/stay night?, I guess. And I rarely see people recommend or even talk about some of those shows much anymore. Changing with the times and stuff like that, but it makes me feel like I'm getting old. And I don't really like it