My answer to this would be a question: has any other Anime managed to achieve the same highs present in DBZ's fight scenes without becoming quite as banal and reveling in it's own stupidity. Has any other Anime managed to do it's filler without it wearing out it's welcome like DBZ did?
The answer to this is "yes" though you'll find different people will have different preferences on what Animes most epitomized these traits. Almost every Anime fan will likely have at least a couple of series they will say managed to hit the highs of DBZ while avoiding the same lows.
I think part of it is that most Anime tends to run either 12-13 episodes or as much as 26. Sometimes you'll see a series that scores episodes in the 50s. The anime series that go on forever and last for hundreds of episodes are the ones that tend to fall into the DBZ trap, things like Naruto, Bleach, etc... such series tend to become really popular when they strike a chord with people and they like the characters to the point where they enjoy experiencing their lives (to an extent) as well as the more exciting bits, but after a while that tends to grate. After like five years for example some kid who is enchanted with the idea of Leaf Village and Naruto and kind of wishes he could live there and be with those characters or whatever is going to be twenty and when the show hasn't grown up at all and starts recycling itself it tends to lead to people turning on it.
I also think a lot of the problem with "mega series" is that for a lot of Japanese viewers it's a matter of routine, seeing one of these every few days, or once a week, isn't any big deal, and the structure means missing an episode or three doesn't matter. Compared to say an American fan who might very well burn themselves out quickly by say watching 100 consecutive episodes of One Piece, it's actually pretty amazing that a lot of people don't burn out even quicker.
That said I'd point to some rather popular animes that have endured in people's memories in the US. Look at say "Cowboy Beebop" it's a show that had it's kinetic fight scenes and action, but also a lot of filler where the team would take on bounties separate from the whole Spike Vs. Vicious storyline, and even had a filler episode or two based around unrelated things where they say jump through hoops to watch a video tape left behind for Faye when she went into Cryonics. The same could also arguably be said for some of the Gundam series that became big in the west when looked at as self contained storylines, things like "W" and the first "Seed" series, they had their asides and filler episodes between the big mecha battles but generally did not grate on anyone in doing it. Of course part of it is that these series pretty much wrapped themselves up in a couple of years. If you look back at pretty much any popular anime series that went from say 12-60 episodes almost all of them had a "Hot Springs episode" or the equivalent once in a while, and people who liked the characters probably enjoyed them, and it worked because they didn't string 30 of them together in a row.
As a result I can almost objectively say that most of the big anime series with hundreds of episodes fit into the "worst" category simply based on the principle that pretty much any genera fan (or anyone who has been a fan) can probably name a series or ten that achieved the same highs without hitting the lows. It could be argued that in terms of watching a bunch of this stuff back to back as opposed to spaced out like during the TV runs it puts Americans into a position to judge it more fairly since we are actually seeing all of this run together and compare it side to side more accurately than say some Japanese TV viewer who might get days of recovery between each episode to sort of close it out. Of course at the same time from a financial perspective those same series have probably made more money than a lot of those that are better in of themselves simply by being able to become institutions.
Unless literally the only Anime you watch is Drazonball Z, One Piece, Bleach, Naruto, or some combination chances are your going to have other favorites. The people who tend to only watch that stuff non-stop can be quite fanatical when they are high off of it, but these are the same guys who will suddenly turn around and try and sell hundreds or thousands of dollars of DVDs and such they no longer want when they finally burn out and realize they literally have no desire to watch a thousand episodes of filler.