I totally agree with you Gyu with the Bleach/DBZ comparison. After they defeat Aizen, the manga is pretty much over unless a new enemy magically appears. They could do some "Go back in time" arcs where we can look at the past background of the characters. I am interested in who Ichigo likes more: Rukia or Inoue?
Plot-wise, I think Dragonball was better compared to DBZ.
Although Naruto is considered the next "DBZ" anime, it's really not alike. The arcs and the characters are blend into the manga nicely compare to the whole "Defeat this enemy, another enemy suddenly appears and then repeat" thing. >.>