It depends on personal preferences. Some people might think Tokyo Ghoul is better for its original story and character development. Others might prefer Tokyo Ghoul:Re for its continuation and new plot twists.
Season 3 of Tokyo Ghoul has a mixed relationship with the manga. While it retains some key elements, it also takes liberties that may not sit well with manga purists. Some story arcs are condensed or altered, affecting the overall coherence compared to the manga.
The Tokyo Ghoul manga is definitely worth reading. The action scenes are exciting, and the character development is compelling. It keeps you hooked from start to finish.