YA recommendations

My husband is considering writing his first novel (hurray!), and we've talked over the plot and decided that it would be best served to be a YA urban fantasy. The last time we read YA was when we were young adults, and that was a fair amount of years ago.

Can anyone recommend any good YA's on the market right now? Particularly urban fantasy, but mainstream/mystery would be good as well. Male MC preferred. More Hardy Boys than teenage angst, you know what I mean?

Thanks, folks!