Some of these are gonna be a bit dated, since I haven't been able to get to a library lately
1. Full Metal Alchemist
2. Sailor Moon
3. Rg Veda
4. Magic Knight Rayearth (both series)
5. Saiyuki (all series, though I need to read Gunlock)
6. Flipside (this is by a dude in the US, but it's in the manga style. It's also a web comic, but he prints it and I buy it every time)
7. Shirahime-syo
8. Revolutionary Girl Utena
9. Van Von Hunter (another US based manga. I am sad they stopped writing this Still hold up XD)
10. Inu Yasha
There's a lot of CLAMP on this list XD I loved XXXHolic, too, but I never got to finish it