When I started watching anime, I realized that manga was a more... portable way for me to read 'anime'. For most series that I watch/read, I like the manga a lot more than I like the show (my one exclusion of this is "Black Cat").
For example, I like Fullmetal Alchemist, InuYasha, Death Note, and TRC a lot more in manga form. Those are just the ones I can think of now... ^^'