One that's original...written by the blogger in their own words
One from Goodreads...Amazon...etc.
If your summyar is going to pretty much echo the words of the official summary, I'd just as soon you use the goodreads or amazon version. I would also prefer you say it's the summary, and then a while later, say something like, "And here are my thoughts..." This way, when I'm looking for opinions on a specific book, I don't have to wade through a hundred summaries to get to opinions. I particularly dislike dry summarizations on goodreads or amazon, since I clearly went there already, looked at the above book summary, and am now just curious if the book was any good.
Now...if you have something to add...some personality to throw in there...something that helps me understand your experience reading the book...then go for it. A summary can say a lot of things, but it won't capture your experience reading it, and that's what I'm looking for.
Off the bat, I'd say original summaries . . . but that really depends on how well the blogger writes. There are some original summaries that make me wish the official one was used.
One of my favourite reviewers likes to summarise a book in a single sentence. I love that.
It's Shannon! http://akindleinhongkong.blogspot.com/
crazy! I could never do that...
I prefer original. I often times don't feel like I really know what the book is about when I read a snip from Goodreads, Amazon, or the back cover.
Plus, I don't like printing other peoples words... its just weird :)
I prefer reading the official summary and as a reviewer I usually always use the summary on the back cover of the book (if it's an ebook I'll google around till I find the most fitting official summary (bookstore/goodreads/etc)