*bump*
I do read a lot of manga, but I guess I collect it more. My unread collection is stupidly vast. I tend to prefer getting to grips with a series of manga all at once, as the release dates between volumes mean I start to lose track of what was happening more (its easier to catch up with the anime).
The manga genres I prefer tend to be less eclectic than my anime tastes, which are pretty wide ranging. Basically, I like action & comedy manga, and good, gripping, very involved stories.
There is one thing I have noted on the various UK-centric forums: its a kind of Tokyopop tunnel-vision, where most manga being discussed are tokyopop titles. Its an availability thing I know, but too many great titles are overlooked.