Write a tier list of almost all anime you've seen so far. No OVA's or movies allowed. Just TV series.

Possible tiers: A+, A, B, C, D, F

I'll start.

[ A+ ]
Cowboy Bebop
Fullmetal Alchemist: Brotherhood
Ghost in the Shell: SAC 2nd GIG

[ A ]
Tengen Toppa Gurren Lagann
Ghost in the Shell: SAC
Code Geass (first season)
Steins;Gate


Code Geass R2
Knights of Cydonia
Gundam SEED
Gundam 00
Fate/Zero
Macross: Frontier
Nodame Cantabile
Daughters of Mnemosyne

[ C ]
Durarara!!
Darker than Black (first season)
Ergo Proxy

[ D ]
Elfen Lied

[ F ]