So many favorites to choose from...Just a few to get you started though:
Fate:Zero and Fate:Stay/Night (What can I say, King Arthur makes a bad-*** lady. Damn that Holy Grail.)
Sword Art Online(Teriyaki Mayo pizza and ginger ale...and if you die in the game, you die in real life)
Log Horizon(Another trapped in MMO genre anime, but I SWEAR they patterned Shiroe off one of my old D&D character sheets O.O Literally no joke.)
Rurouni Kenshin(Meiji era, swordsmen, best assassin turned semi-pacifist, pulled back in because everyone wants a piece)
Fairy Tail(Much ado about slapstick. Also, gotta love a summoner whose summons would rather hit on her than actually fight anything.)
Fullmetal Alchemist: Brotherhood(Two brothers find out that if you want to bring back the dead, it's gonna cost you an arm and a leg. And maybe a bit more. Also, make sure it's Brotherhood, the first version kind of sucked. HARD.)
Attack on Titan(Nom, nom, humans. In the most general sense, lots of Spider-Man wannabes(that are better than the original will ever be) using swords to keep humanity's remnant from ending up appetizers)
Code Geass(Prince with the power to make ANYONE obey him, but only once. His dad controls half the world, but disowned him. Cue ungodly tactical sense as he takes on the man.)
Fate:Zero and Fate:Stay/Night (What can I say, King Arthur makes a bad-*** lady. Damn that Holy Grail.)
Sword Art Online(Teriyaki Mayo pizza and ginger ale...and if you die in the game, you die in real life)
Log Horizon(Another trapped in MMO genre anime, but I SWEAR they patterned Shiroe off one of my old D&D character sheets O.O Literally no joke.)
Rurouni Kenshin(Meiji era, swordsmen, best assassin turned semi-pacifist, pulled back in because everyone wants a piece)
Fairy Tail(Much ado about slapstick. Also, gotta love a summoner whose summons would rather hit on her than actually fight anything.)
Fullmetal Alchemist: Brotherhood(Two brothers find out that if you want to bring back the dead, it's gonna cost you an arm and a leg. And maybe a bit more. Also, make sure it's Brotherhood, the first version kind of sucked. HARD.)
Attack on Titan(Nom, nom, humans. In the most general sense, lots of Spider-Man wannabes(that are better than the original will ever be) using swords to keep humanity's remnant from ending up appetizers)
Code Geass(Prince with the power to make ANYONE obey him, but only once. His dad controls half the world, but disowned him. Cue ungodly tactical sense as he takes on the man.)