Shoujo☆Kageki Revue Starlight Specials

Entries in this list may include the following:
1. Awesome action
2. Great music
3. Very thick yuri subtext
4. Nana Mizuki

I highly recommend the Nanoha series; Symphogear is basically a spiritual sequel to it.
Also, feel free to recommend more series to add to this collection, I'm always looking for more! Just comment on my Profile or something.
If you're into manga, try "Hero-san to Moto Onna Kanbu-san"! Sadly I can't change the type of stack after publishing it lol.

-Assault Lily
-D4DJ
-Rebirth
-Revue Starlight
-Teppen

These anime primarily focus on one or more childhood friends. The friends might have reunited after a long period of time apart, or they might be characters who start a relationship in a Romance anime. A Childhood Promise might also be involved.