It can't be helped by this point but Dragon Ball doesn't even feel that original anymore when like Super takes idea or inspiration from certain fanfics or fan-made work. Sure, they do their own spin on it and we got some cool things from it like Goku Black and this tournament of power if it's well executed, but even still...
To each their own on what generation of DB they like best though. I used to see some say they liked GT better than Z for similar reasons like shorter fights that aren't dragged out as much, but they were a minority. If you take out the anime filler though, I wouldn't say Z suffered that much from being dragged out aside from the Buu arc. You could maybe say the Frieza Namek arc too, but that was originally intended to be the end of the series.