Probably a lot of suggestions already mentioned, but...
FMA: Brotherhood - Amazing all around anime. Great world-building, production value, excellent cast of characters, solid ending.
Steins;Gate - Probably my favorite time travel story I've ever seen in fiction. Does some INCREDIBLE things with its set up. Takes a bit to get going, but very much worth it.
Tengen Toppa Gurren Lagann - Basically an antidepressant in anime form
Mob Psycho 100 - Great action, probably the funniest anime I've ever seen, never takes itself too seriously, incredible set-pieces peppered through the whole show.
If you somehow missed either Death Note or Code Geass, I'd also give those a solid recommend. Entertainment value for both is through the roof. Code Geass somehow introduces a series breaking reveal or event every 7 or so episodes and then continues to outdo itself. Can't image the process the creators of the show went through to put it together.
Great Pretender - I won't put it in the same tier as the shows I listed above, but I watched it recently and had a pretty solid time with it.
And if you have time...
Monster - Naoki Urasawa is a genius. Fantastic thriller with one of anime's most iconic villains.