I would recommend Patrick Rothfuss' The Name of the Wind. It doesn't really have any language or sex that I can remember, and if it were strong enough, I think I would remember it. Then again, I can't remember what I had for dinner last night, so yeah.
I suggest The Lies of Locke Lamora to pretty much everyone, but it has a lot of language, and some fairly intense violence, so I'm not sure it's really your thing.
I second John Brown's Servant of a Dark God. Brown is a really nice guy, and his writing is great. It's very clean, and everything that's in there has a purpose.
I have a soft spot in my heart for David Eddings' stuff, since they were some of the books my mother read to me growing up. They're very clean, as I remember them, and would probably be considered YA by today's standards. Flame away, everyone, I like Eddings.
The Graveyard Book by Neil Gaiman is a very good read, and I highly recommend it. Think of the Jungle Book, but with dead peoples' ghosts. Oh, and a guy trying to murder the main character...who is not a tiger or baboon.
Sanderson's Alcatraz series is clearly aimed at kids, but it's still a fun read for adults.
Joseph Delaney's The Last Apprentice series is one that I never hear people talking about, but I think is great. Just gruesome enough to seem scary to kids, but solid writing in my opinion. They make a good airplane and car ride book, since you can plow through one in just an hour or two.
The Hunger Games and Catching Fire are very clean books. I liked The Hunger Games much more, but Catching Fire is a worthy succesor. The Third book is probably due out in a year and a half or so, maybe less. I hear there's a movie deal in the works too. Think Thunderdome for kids. That's honestly the best quick description I can give.
On Stranger Tides is a novel by Tim Powers that I finished not too long ago. It's a swashbuckling tale that Pirates of the Carribean clearly swiped several things from initially, and I hear that the next Pirates movie is based on this book. It was fun. There was some violence, but not much in the way of cursing or sex that I remember, and it was all necessary to the story.
There's always the Harry Potters, though I think everyone in the entire world has read those. It's like they shipped them in Crack Jack boxes or something. Sheesh.
Overlooked and well worth the read for YA is the Bartimaeus Trilogy by Jonathan Stroud. I really enjoyed these books, and I think that the only reason they weren't more popular was because they were out at the same time as the steam engine that was Rowling's Harry Potter stuff.
That's a decent list for now, I guess. Enjoy!
