Naruto whines more, not like baby whining, but all that peace stuff. Proof? Talk no jutsu. He managed to talk no jutsu all his opponents. Plus he's all like "Sasuke, I'll get you back" Or "Sasuke, you're my friend so I'll take you back to Konoha". I don't mind it if he says it, but he says it all the time.
Sasuke whines, although he doesn't waste his time talking. He whines through his actions, he's kinda obsessed with revenge, it's like cocaine to him.
Sasuke's drug is revenge.
Naruto's drug is Sasuke.