Characterization: seeing characters grow up is apart of Dragonball and Dragonball Z's charm. Seeing them grow up and have kids makes the characterization feel more realistic, which helps the audience form a bigger bond with the characters on screen, more so than what Bleach has achieved.
Fights: Even if DBZ has pacing issues, it's all because of the manga. They didn't want to go past it, causing tons of unnecessary filler. Anyways, when there's a fight going on DBZ it gets busy and you can get really into it. Goku vs Vegeta fight is greater than the entirety of Bleach.
The filler in DBZ is pretty damn good: the driving lesson episode and others keep the audience entertained. If Bleach is anything like Naruto it's filler is shit.
Influence: DB and DBZ have influenced almost the entire shounen genre, and is better than all of them with the exception of One Piece and Rurouni Kenshin. Naruto and Bleach can kiss it.
Bleach sucks: being the top reason. At least, with all of it's flaws, DBZ remains entertaining.
You can get this shit out of here Viz.