Lina Inverse of Slayers. Can't forget her. ^_^
Also Mint from Dewprism...but don't cosplay her. My girlfriend is doing her and there'd be a bloodbath if someone else came in that costume...
Setting Cosplay Records One Costume At A Time
--The Very First Shukaku Cosplayer-- (Naruto, AX04)
--The First Haku to have self-staying (magnetic) mask-- (Naruto, AX04)
--The First True Dark Link-- (Legend of Zelda, AX05)