Yes, DBZ has great dialogue.
Just to correct Vegeta_Master it goes like this:
Vegeta: I refuse!
Babadi: What!
Dabura: Huh?!
Vegeta: Your business with the Kai, it means nothing to me. Kakarot is my only objective.
Babadi: Thats very amazing Vegeta but I'm serious. With every fiber in your body I command you to destroy! Kill, Kill the Kai!
Vegeta: No, get out of my head, I've already told you! I will not be distracted from this anymore. I wont! It will take more than headgames to stop me. You may have invaded my mind and my body, but there's one thing a saiyan always keeps. HIS PRIDE!!!!
Kai: What kind of strengths allows a person to overpower their own enslaved body?
Here are a couple other ones off the top of my head:
Piccolo: Would you like something to eat before you fight?
Buu: No, I dont want to eat you. But take me their now, BEFORE I BREAK YOU IN HALF!
Nappa: Fools, I'm down and all around I'll crush you!
Vegeta: I'm going to crush you, and throw you into the wind!
Vegeta: Yes, I know. Few could train as intensely as I did to achieve this kind of power.
18: How sad, to work so hard for...so little.
Vegeta: SAD FOR YOU!!!!!!!
Gohan: i thought you said something about making me dead?
Buu: Buu make you dead! What Buu say, Buu do! NOW YOU DIE!
Buu: So hotshot, you want to fight Majin Buu?
Gohan: Fight you? No I want to kill you.
Tien: Alright, it looks like I'm back on the saddle. What luck, this three eyed cowboy is ready for one more ride!
Vegeta: I've met stronger house plants.
Cell: This must be hard for you with all those wounds, I'm sure this makes them BURN!
Thats bout it for now.
Edit: O wait, another one of my top favorites.
Kai: Dont you see the universe matters more than your meaningless squabble?
Vegeta: MEANINGLESS HUH?! WHAT DO YOU KNOW OF MEANINGLESS? Spend most of your life ruled by another! Watch your race twindle to a handful! And then, tell me what has more meaning then your own strength! I have in me the blood of a saiyan prince! He is nothing but a joke! Yet I've had to watch hims urpass me in strength! My destiny, thrown to the waist side! He, hes even saved my life as if I were a helpless child. He has stolen my honor! And his debts, MUST BE PAID!