Soul Eater is good and Eden of the East is smurfing fantastic.

As Trix said I doubt they'd do Higurashi just because of the extreme violent content.

When it comes to NHK, the average American mainstream anime fan wouldn't understand what the smurf would be going on, and would likely find it boring and pretentious.

As far as what I hope they'd air, it doesn't really matter much to me, since I download whatever anime I want and then buy it if I like it. But if I had to pick something, I think Baccano! would be right up their alley.