I’ll start.
I have over 450 volumes in 79 different series. Some of these are just single volume ‘series’. Some series are complete and some are ongoing.
The List
Alcohol, Shirt & Kiss
Alone in My King’s Harem
Antique Bakery (Vol 1-4)
Apocalypse Meow (Vol 3) ADV Manga
Art of Loving (Vol 1)
Black Butler (Vol 1-2)
Black Cat (Vol 1-7)
Black Jack (Vol 1-17)
Bleach (Vol 1-63)
Blood Alone (Vol 1-6)
Brother
…but, I’m Your Teacher
The Cain Saga (Vol 1-4a)
Camera, Camera, Camera (Vol 1-2)
Can’t Win With You (Vol 1)
Cantarella (Vol 1-9)
Cold Sleep
Constellations in My Palm
Cowboy Bebop (Vol 1-3)
Crimson Spell (Vol 1-5)
Crying Freeman (Vol 1-5)
Dear Myself
Densha Otoko (Vol 1) ADV Manga
Dost Thou Know?
Earthian (Vol 1)
Embracing Love (Vol 1-6)
Enslaved by the Dragon
Exotic & Delicious Fate
Fake (Vol 1-7)
Finder (Vol 1-4)
Fruits Basket (Vol 1-15)
FullMetal Alchemist (Vol 1-27)
GetBackers (Vol 1-25)
Ghost in the Shell (compilation)
Godchild (Vol 1-8)
Gorgeous Carat (Vol 1-4; Galaxy)
Gravitation (Vol 1-12)
Gunparade March (Vol 1) ADV Manga
Highschool of the Dead (Vol 1-7) < omnibus >
Il Gatto Sul G (Vol 1-3)
InuYasha (Vol 1-56)
Jack the Ripper: Hell Blade (Vol 1-2)
Jazz (Vol 1)
Ka-Shin-Fu
Kizuna: Bonds of Love (Vol 1)
La Esperanca (Vol 1-7)
La Vie En Rose
Legal Drug (Vol 1-3)
Little Butterfly (Vol 1)
Lost Boys
Love Control
Love Share
Loveholic (Vol 1)
Loveless (Vol 1-12)
Nana (Vol 1-21)
Neon Genesis Evangelion (Vol 1-5)
Not Enough Time
Only the Ring Finger Knows
Petite Cossette (Vol 1-2)
Rin! (Vol 1-3)
Same Cell Organism
Samurai Champloo (Vol 1-2)
Satisfaction Guaranteed (Vol 1)
Scryed (Vol 1-4)
Sensual Phrase (Vol 1-18)
Seven
Skyscrapers of Oz
Solfege
Stallion
A Strange & Mystifying Story
Sweet Revolution
Time Lag
Trigun Maximum (Vol 1-3)
Trinity Blood (Vol 1-10)
Vassalord (Vol 1-4)
Wallflower (Vol 1-7)
Wild Rock
Words of Devotion (Vol 1)
You & Harujion