(1)Luna Lovegood
(8)Aragog
I think Aragog has Loser's Lurgy.
(5)Viktor Krum
(4)Lily Potter (née Evans)
So...Krum has one good scene, where he plays quidditch, and then a bunch of "man, this guy is actually pretty normal and not that interesting" scenes. Which is kind-of the purpose of his character (celebrity and talent in one area doesn't mean you're a different breed of human) but doesn't really score that many points with me.
Lily...
“You didn’t think it was such a freak’s school when you wrote to the headmaster and begged him to take you.”
“Let me? Let me?” Lily’s bright green eyes were slits. Snape backtracked at once.
“I’m sorry.”
“I’m not interested.”
“I’m sorry!”
“Save your breath”
Lilly, on the other hand, is intense in damn near every scene she's in. You know, the default comparison some people make for Lilly would be hermione--token Muggle born and all that. But Hermione's lines almost never have bite like these lines. (The only time Hermione's lines have bite is when she's talking to Ron). Know who does have lines like this, though? Harry...but only when he's in ass-kicking mode.
Lily has very little screen time, but it's high, high quality stuff. And she's up against...someone with low screen time, but much of the screen time he does have is kinda dull.
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Cats land on their feet. Toast lands peanut butter side down. A cat with toast strapped to its back will hover above the ground in a state of quantum indecision