Ok serious post;
Girls Und Panzer.
All you need.
Maybe also watch Buccano
And Love Lab
Also Eureka 7
oh and all the Studio Ghibli films
plus Dennou Coil
and of course Summer Wars and The Girl Who Leapt Though Time
Did I mention Working! how about Working!! ?
not forgeting Angel Beats and Kotoura-san as well as A Certain Scientific Railgun
Is that all? I'm not sure.
(in other news GuP is epic, the bits in-between the battles is pretty 'meh' but the battles make up for it.)
EDIT: missed some
Full metal Alchemist and FMA Brotherhood
Spice And Wolf
Haruhi + Disappearance
Hentai Prince and Stony cult (Hentai Ouji to Warawanai Neko.)
Love, Chunibyo & Other Delusions (Chuunibyou demo Koi ga Shitai)
"some people are like slinkies there really good for nothing, but they still bring a smile to your face when you push them down a flight of stairs"
"Triangalism! What's the fuckin' point!"