There's plenty on the Fanfic Recs page.
I've been reading 'Phantoms', and enjoying it quite a bit. It's the 'feel-bad' Sixth war fic of the year, and a nice companion to the oncoming downer of Zero. (Though I'm not actually familiar with 'Phantom of Inferno', so some of the finer points are probably lost on me.)
Did I mention the main character's hell-spawned nightmares? Because the hell-spawned nightmares (and the battles) are a treat to read.
For comedy, there's a fic called 'Shinderalla', which had me ROFLMAO'ing. The cast tries to stage a play of Cinderella, with Shinji as the lead, resulting in absolute madness. Highlights are Illya's hostile takeover of the script, into 'Cinder-ilya', and Kirei as the narrator.
Another recommendation is a Crossover with Guts (from Berserk) as, well, Berserker. It's done in a very unique 'big picture' format, so you get a general overview of what's going on.
edit: Found it. The name of the Berserk crossover is 'Miracle', and Guts is summoned as Assassin.
edited 25th Jan '12 10:31:39 AM by iridium248