Most epic:
Temari: Allies of the Leaf!
Kankuro: We're shinobi!
Gaara: Of the sand!
Most touching? There are so many. Since Haku and Zabuza are too mainstream (yeah I'm joking) I'll go with this:
Lady Chiyo: "I'm happy that someone like you has appeared in the world of shinobi that we foolish old people created. Everything I've ever done was a mistake. But now, at the end, it looks like I'll finally be able to do the right thing. The Sand Village and Konoha. Their future will be much different than the way things were back in my day. That strange power of yours that Kakashi mentioned… That power will have a strong influence on the future. Become a Hokage like none before you.
And Sakura… Next time, save the people who are dear to you, not some old hag. You and I are very similar. There aren't many girls as chivalrous as you around. You might become a kunoichi who surpasses her master.
Naruto… a request from an old woman. You are the only one who knows Gaara's pain… Gaara also knows your pain. Help Gaara out…"