It'll be subjective so you'll disagree absolutely. If I say Planetes is better you'll scream how much more EPIC AoT is even though I think Planetes is the better story with better characters.
But sure! I'll limit to series and ones that have ended.
Serial Experiments Lain
Haibane Renmei
GitS: SAC
Samurai Champloo
Cowboy Bebop
Edgerunners
FMA: Brotherhood
Violet Evergarden
Eva
Pluto
Steins;Gate
Devilman Crybaby
Kaiba
Baccano
Monster
Madoka
Gunbuster + Diebuster
Sorry, I got carried away.