Yeah, I'm a Killua fangirl. Admittedly, Killua's my favorite HxH character, followed by Hisoka. Killua's a great deuteragonist in a shounen manga, and although Gon's the main protagonist, the main driving force of the story, and the main focus of the story, Killua also does his part to drive the story independent of Gon. Where in other series you may have the main character and then his sidekick, but here I don't see Killua as a sidekick. By helping out Gon, he's also helping himself out. And Gon needs Killua there just as much as Killua needs Gon. They have one of the best friendships I've seen in any anime or manga, and Madhouse has been doing an excellent job showcasing this, IMO. Especially these last couple episodes.
I digress. I can't wait to see Leorio's haggling skills, and those darn cute ladybug/beetle cellphones they get. I want one of those so badly.