>Date A Live
Too many girls, peaked around season 3
>DanMachi
Author insists its not harem.
>Machine Doll
Anime is good, haven't read the LNs.
>DxD
Dragged on for too long, bloated harem, not ecchi enough, cool fights. S4 decided to change the characters designs for the worse. Watch the SPs and OVAs
>Black Bullet
Anime only, too bad the LN is dead.
>Rokujouma
Thrash MC with kindergarten tier writing, LN peaked when he went back in time. Everything else is not good. Anime is kinda meh.
>Vanadis
Worth a read and watch. Anime is decent but only 1 season.
>GATE
Manga is better.
>Kuusen Madoushi/Majutsu Koushi
Only the anime, its alright. Dont expect anything.
>Triage X
Turned into Highschool of the Dead halfway in the manga. Anime is decent but I don't like how blob/fat the characters looked. Highschool of the Dead anime did the characters design right.