I haven't watched any anime in a few years but with the upcoming Berserk reboot I thought I'd start again.
My favourites have been:
Berserk, Elfen Lied, Akira, Fist of the North Star, Claymore, and Guyver.
I have Attack on Titan, Full Metal Alchemist, Gantz, Basilisk, Code Geass on my watchlist, Is there anything else similar anyone would recommend?
MAL (everything I can remember seeing, probably still a few things missing)