Favorite Video Game Series

[Azure-Tranquility]

this is not a series but anything from Treasure

HMMM.

I'm pretty sure I own every US-released Level-5 game currently;

Dragon Quest 8
Dragon Quest 9(?)
Rogue Galaxy
Dark Cloud
Dark Cloud 2
Professor Layton 1-4
Jeanne D'Arc

Edit: Sans White Knight Chronicles. Actually the same could be said for Clover Studios & Platinum, I'm only omitting 1-2 games. They're pretty good developers I guess.