Here are some good recommendations that you don't see very often 
- Grenadier
- Gungrave
- Shadow Skill
- Rune Soldier
- Grenadier
- Gungrave
- Shadow Skill
- Rune Soldier
If he liked Index, I wouldn't recommend Railgun. Unless you liked Index for her loli factor, there isn't much to the Railgun series except Kuroko assaulting Mikoto.Sajuuk-khar said:To Aru Kagaku no Railgun, a spin-off series starring Misaka, is also currently airing. Maybe you'll like that.Chiefmon said:To Aru Majutsu no Index
Seen every single one of those except for Katanagatari.RedMenace said:Well, since you liked the "generic-story-fan-fest" that is "11eyes", I can safely recommend to you the following 2:Chiefmon said:Preferably running anime.
Omamori Himari - harem fan-fest just like 11eyes was.
Seikon no Qwaser - softcore porn disguised as an supernatural-action show, that for some unknown reason involves (read "rapes the canon of") Russian Orthodox church. (EDIT: I technically belong to RO, and that show is beyond wrong and offensive)
Now for something with a bit of decency and story:
Dance in the Vampire Bund - this one is actually good.
To Aru Kagaku no Railgun - You saw Index, you should already know.
Katanagatari - an hour-long episode once a month, alternative medieval Japan (read "samurais, ninjas, martial arts and swords ahoy!").