I thought the Final Getsuga Tensho was awesome, but why was Ichigo the one who had to do it. Surely one other Soul Reaper could learn a Final Move like that from their swords.
Code Geass is irrevocably one of the beast anime's out there. The characters are so well developed and intertwined, that when one person dies the whole tone of the story changes.
I really enjoy the diversity Fan fiction can bring to an anime universe and love reading them. However I hate it when someone butchers the characters personality as just uses their appearances for a basis of a story.
At the moment my top one would be 1.Code Geass 2.The Melancholy of Haruhi Suzumiya 3.Fairy Tail 4.Full Metal Alchemist Brotherhood 5.Steins: Gate 6.Bleach