RITA: Hello. I'm Rita Skeeter. I write for the Daily Prophet. But of course you know that, don't you? It's you we don't know. You're the juicy news. What quirks lurk beneath those rosy cheeks? What mysteries do the muscles mask? Does courage lie beneath those curls? In short, what makes a champion tick?
Rita is the wizarding world's version of a slimy tabloid journalist. She's looking for basically anything sensational she can put into her article, and kind of trying (by making it a question) to plant the seed that Harry might not be super-brave. We know otherwise, though, of course.
DUMBLEDORE: The winner is Mr. Diggory who showed innate command of the Bubble-Head Charm. However, seeing as Mr. Potter would have finished first had it not been for his determination to rescue not only Mr. Weasley, but the others as well, we've agreed to award him second place for outstanding moral fiber!
Harry has just proven himself super brave and selfless by saving Fleur's sister in addition to Ron as part of the second task in the tournament, even though it slowed him down getting to the finish line. Who says nice guys finish last? In this case, one finished second.
CEDRIC: You know, for a moment there, I thought you were going to let it get me.
HARRY: For a moment, so did I.
CEDRIC: Some game, huh?
HARRY: Some game.
As Dumbledore warned Harry, the maze kind of changes you, and Harry almost decides to save himself/go for the cup rather than help Cedric when the maze is about to swallow him up. Luckily, he shakes off the maze's evil influence and saves Cedric, proving that he's still the strong, brave boy we always knew he was (we didn't doubt it for a second, Harry, promise).
WORMTAIL: I returned.
VOLDEMORT: Out of fear, not loyalty.
Wormtail is, like, the opposite of Harry and Cedric; he does everything out of fear or to gain, without a thought (apparently) about whether it's right. He's clearly terrified of the Dark Lord, and so he's done things like kill Harry's parents and Cedric, steal Harry's blood to bring Voldemort back to life…you know, normal stuff that friends ask you to do.
VOLDEMORT: After tonight, if they speak of you, they'll speak only of how you begged for death. And I, being a merciful Lord, obliged.
In addition to just plain killing Harry, Voldemort is super excited about making Harry look like a coward who begged for his life.
DUMBLEDORE: In light of recent events, the bonds of friendship we've made this year will be more important than ever. Remember that, and Cedric Diggory will not have died in vain. You remember that, and we'll celebrate a boy who was kind and honest, and brave and true, right to the very end.
Cedric was definitely brave. After all, he definitely put himself at risk to help Harry when a bewitched Krum was after him. Too bad we won't be seeing more of him, since we really think he and Harry would have been good friends (well, er, aside from the whole love triangle with Cho thing).
DUMBLEDORE: Dark and difficult times lie ahead. Soon we must all face the choice between what is right and what is easy. But remember this: You have friends here. You're not alone.
So, yeah, we've seen what "Doing what is easy" looks like: that's Wormtail, who repeatedly fails to stand up to the Dark Lord when tasked with doing nasty things. Bravery, Dumbledore suggests, is being willing to do what is hard, if it's the right thing. Let's hope Harry and his friends are up to the task.