What do you think are the must-read YA books, for someone who wants to get a feel for what's selling in YA these days? Especially stuff that's sold well in the past couple years.
I guess the questions are what you mean by "sold well" (sheer numbers? lists? critical response? some combination thereof?) & in which subgenre.
Not sure of your specs, so my thoughts are a combo of sales & response.
If you're going for fantasy, I suggest GRACELING (Cashore) & GRAVEYARD BOOK (Gaiman). They are 2 of my absolute favourites, & both have done extremely well. Gaiman's book was the Newbery winner AND #1 on the NY Times. Cashore's book has been all over the place listwise. It's gorgeous.
If you're doing contemporary, LOOKING FOR ALASKA (Green) & 13 REASONS (Asher) are both well crafted and succeed both literarily & commercially.
One very recent hottest picks (released last week) is FOREST OF HANDS & TEETH (Ryan). It's literary & commercial, & if it doesn't rock a reader, nothing will. I think it's dark fantasy/literature.
Post-apoc & darker & steampunk texts seem to be a trend in progress. There are a few of these heading out soon.
Urban fantasy/paranormal romance is still strong. Sarah Rees Brennan's THE DEMONS LEXICON (not yet released) & Cassie Clare's MORTAL INSTRUMENTS (book 3 out soon) are biggies in that category. SRB's book isn't out yet, but the deals & buzz are noteworthy already. (And the book is very good.) I expect it will do very well.
In the paranormal, there are a bunch of ghost texts. I have a ghost w golem one in my TBR pile, & I've recently had 2 other ghost ones on my desk. One, Gillian Shield's IMMORTAL, is an interesting blend of 19th century Brit novel & contemporary paranormal ghost. It's garnering strong buzz. It's also quite lovely.
More fantasy-- HUNGER GAMES (Collins), ADORATION OF JENNA FOX (Pearson), IMPOSSIBLE (Werlin) & LITTLE BROTHER (Doctorow) were all well rec'd. I've only read Pearson's text & Werlin's text, and they are fabulous.
In historical, you have the OCTAVIAN NOTHING (MT Anderson). In issue/contemp, RULES OF SURVIVAL (Werlin) and WINTERGIRLS (LH Anderson) are both brililant. Srsly, WINTERGIRLS might be one of the most artistic, powerful, disturbing, brilliant books I've ever read. (I don't know if it's out, but if not it will be v soon.)
GENERAL THOUGHTS:
You might look at the LOCUS rec reading list to see what they are recommending for the fantasy readers. RWA has the RITA for for the best in YA romance. RT has a list for the best in Young Adult. See what Kirkus, SLJ, & PW give stars to. Remember, though, that these are all very subjective.
If you're talking abt sheer sales numbers, you can look at Publishers Marketplace for the "major" deals. Remember, though, that not all deals are reported.
Good luck to you.
M.