I don't have an option this week, unless I pick #2. Because to me, what deserves a comment/review depends on not how much I like or dislike it, but on whether I have something to say about it that hasn't been said already. This can happen with series I love, hate, or have neutral feelings about.
For example, if the majority of comments are unfairly criticising something, whether I loved that manga or just thought it was average, I pitch in and try for something a bit less hate-mongering. If, on the other hand, something is being endlessly praised and nobody has pointed out a single flaw, I'll comment with a more unbiased view in a pros-and-cons fashion. On the other hand, if something is really good or really terrible but doesn't have a single comment, I'll write something. (Which means that if I found a series to be average, I'm not likely to be the first to comment on it, since there's no impetus)
I guess I take the commenting thing a bit more seriously than most people. Odd, because I rarely go by reviews when I'm
deciding what to read or watch. But then again, I rarely agree with majority opinion so there's no point in my depending on the comments anyway. If I had, I'd have missed out on half of my current favourites