As far as culture phenomenons go, I think we can say that Dragon Ball is The Simpsons of anime. Yes both shows/properties are vastly different to on and another in terms of genre and story telling. But as far as becoming incredibly popular in mainstream entertainment, both have created strong fan followings around the world and are without a doubt some of the biggest names in animated entertainment.
If there is anything similar about the two properties besides their popularity, its that the main characters happen to be extremely flawed parents. There's Homer Simpson, who's normally shown a disinterest in Lisa's activities and has a bad happen of choking Bart whenever Bart angers him. Then there's Goku, who's almost never there for Gohan and basically lets Piccolo play the Father figure role. So who is the worst father between these two?