I've read over one hundred books I think were better. And I mean that literally; if I spent a day doing it, I could actually go through my bookshelves and write down a list of one hundred and one books I liked more.

I've read many, many books I liked more than many books which I would consider "better" in a general sense. From the context of the discussion, I'd think "were better" was the meaning you meant. Alternatively, maybe you don't experience such a discrepancy between what you like and what you believe is "good writing"?