Of all the animes I've watched (Evangelion, Gundam Wing, X, Akira, Trigun, Outlaw Star, and Cowboy Bebop, to name only a small percent), DBZ is my favorite. Especiall the unedited version. I don't think the world of anime would ever be the same without the infamous Vegeta, and I really liked it after the Buu saga. The Cell saga sucked, and I'm just glad Toriyama redeemed himself. But I don't see why people hate the Buu saga so much, when it is the best of them all.
Vegeta's first true possession, Trunks and Goten as kids, the first fusions, SSJ3, a badguy that actually had ALL the warriors worried for a moment, a badguy that is near undefeatable, constantly changing, and having one of the cheapest, most powrful attacks of all (candy beam), Videl, Krillin with hair and better cloths, Vegeta's first sacrifice, Vegeta's first sign of true love for his family, and yes, even Kakarott, and the great Saiyaman!
The Buu saga was the best of them all, but I prefer the movies over all of it.