On a scale of one to ten, I could count on one hand (and maybe have one or two fingers left over) the books that I have considered a ten. I am a tough grader...it has to be a real standout for me. And most importantly in order to get a ten, it has to be a book that I would be happy to read over again.
I have just added one to my short list: The Rosie Project by Graeme Simsion. It is funny and intelligent and sweet (but not sickeningly so). The characters are very likable, and it was just delightful.
If you have a Kindle, the Kindle version is available on amazon.com for just $1.99. WELL worth the money.