I don't really remember many picture books. I started off with Berenstain Bears and He-Man/She-Ra books, but beyond that, I don't really remember. (I actually still own all those books, and had them in my bookcase along with all my regular books.) Some of my favorite kids and YA books: Invitation to the Game, The True Confessions of Charlotte Doyle, Singularity, The Witch of Blackbird Pond, and of course old stand-bys like the Anne of Green Gables books, Little Women, etc. The ones that I linked to are all books I've continued to reread over the years as an adult, and they're all great - I totally recommend them.
20. Least favourite plot device employed by way too many books you actually enjoyed otherwise
I'm not at all a fan of the love triangle. AT ALL. It is incredibly difficult to make work, it tends to make the central character, the one torn between two others, into some kind of irresistible Mary Sue (because that character is usually a woman), it overwhelms the plot (or becomes the plot), and it just generally bores me. I hated it in The Hunger Games, it drives me to distraction in the Sookie Stackhouse books (especially when it's not a love triangle but it's instead a love rectangle or pentagon), and I haven't read Twilight so I probably can't complain about it (and wouldn't enjoy the books otherwise, I'm sure), but hey, why not. I'm sure there are books out there with interesting stories about someone caught between two lovers or something, but for the most part? Eh.
21. A book you thought you wouldn’t like but ended up loving
I just now read Jane Eyre for the first time. I won't say I didn't think I wouldn't like it, but I expected to just read it, and have my "classic I've never read before" book out of the way for this year. And I LOVED IIIIIIIIIIITTTT. So, so good. Even though I knew the basic plot ahead of time, I still found myself reading late into the night so I could see what happened next. And I was just incredibly impressed with the character of Jane, who became a confident, intelligent, completely independent woman who knew her own heart and mind and refused to let anyone, not even the wealthy Mr. Rochester, change that. (If you want to talk about things that are depressing, compare Jane Eyre to Bella Swan. Yeah.) I just finished watching the 2006 BBC miniseries (which was perfect and wonderful and Ruth Wilson and Toby Stephens I LOVED THEM YESSSS), will watch the 2011 film this weekend, have the 90s film with Ciaran Hinds (mmmmmmmm) to watch after that, etc. I'm sort of consumed by it atm.