What about not-so-great books?

I know the question of whether to post bad reviews has been discussed to death, but . . . apparently I'm going to make you discuss it again. It's been bothering me since my earlier post, because even though I didn't say a book was bad, I did say I didn't think one book was as good as another book. Which . . . is true. And honest. And everyone makes value judgments about what they read. But. These are my concerns:

1) Well, if a book is REALLY bad, I'll probably not finish it, and I wouldn't review something I didn't read in its entirety. So I guess I'm really asking about "I wasn't crazy about this" books, rather than "OMG this is awful" books.

2) I know authors Google themselves - everyone Googles themselves - and I don't like the idea of them coming here and finding primarily negative things. I realize this is sort of silly, but . . . still.

3) I assume you all know that these are all MY opinions here, and have nothing to do with my employer, but I am still afraid of someone thinking badly of her because I didn't like their book, or something. Again, I realize this is silly, but I worry. About everything, basically.

4) I don't have infinite blogging time, so I'd rather spend my time and energy telling you about books I love!

But at the same time, I don't want to make it sound like I LOVE EVERYTHING, you know? And I would NEVER say I liked something if I didn't. I would just not mention it. This is what I'm leaning toward - writing book recommendations, rather than reviews, and just not mentioning the books I wouldn't recommend, unless they come up when I'm writing about a certain topic.

Does this make sense? Thoughts?

Edited to add: I also don't mean saying only positive things. "I loved everything about this" isn't really helpful. There's always room for "I wish the author had..." or "I wasn't crazy about this one thing because..." even when a review is generally positive.