I really don't like any of the TokyoPop or ShonenJump manga; because for it to be manga it has to be originally done in Japanese. Tokyopop manga isn't made by the japanese usually.
Shonen jump is just Mainstream Manga; AKA the junk everyone likes and the junk that people who have only completed 1 or 2 manga series and don't know what good manga is read.
If you want REAL good Manga, go buy Coyboy Bebop, Death Note, Law Of Ueki, or something GOOD.