It seems an easy question. The young adult genre is awesome. There. Done. *dusts off hands*
But, really, it's more than that. Back when I was a teen (eons ago...), there wasn't much in the way of books written specifically for me. Sure there were fabulous books by Judy Blume, SE Hinton's THE OUTSIDERS, and some others but not many that spoke to me at the time. Probably the reason I jumped from middle grade books, paused at the YA selection for a very short time then hopped into romance (Victoria Holt was my major stepping stone).
Nowadays, of course, there's a plethora of young adult novels. Boatloads. A book lover's paradise.
I'm in awe of the fabulosity coming from the YA sector, love reading the offerings and sharing my favorites with my students and my high school's awesome librarians (fellow book lovers -- we geek out over books all the time!).
So, why do you love YA?