I also give my approval to
Chrno Crusade, amazing ending.
Mecha shows I can think of would be.
Gundam SEED &
SEED Destiny
Code Geass
Macross Zero
And for shounen it would be. (Except for the two given, Bleach and Naruto)
Busou Renkin
Kenichi
And if youŽre not so picky about the action IŽd recommend
Nana, for a full overdose of romance and music.