Prologue, Ron Weasley's: Ten Things I Hate About Hermione Granger.

He hates whenever she feels selfrightish when it comes to things that she thinks everyone should know.

Her inability to admit when she is wrong especially if it looks like her cat ate his rat. It doesn't matter that in reality that the rat was Peter Pettigrew. Especially if you consider at the time they didn't know that.

Or the way she judges people for not getting it right on the first try when it comes to spell work. Not everyone is a fast paste when it comes to getting things done.

The way she completely sucks up to the adults unless of course they prove to her that something is wrong with them.

Her hypocrisy; apparently it's okay for her to do things that to others would be mess up but heaven forbid anyone else does them, then it's okay to get a lecture from her.

The fact that apparently you have to be a mind reader to know what she is getting at instead of actually talking to someone to explain something.

The way she thinks that she is right just because she read from a book. Not everything in the books is correct.

Or the way that she would judge another person's family as a whole after just meeting the last family and think that everyone is like that to house elf.

Or the fact that she thinks that she knows about another person culture just because she read a book about said culture.

Lastly, he hates the fact that he started to gain feelings for a girl that he thought he hated but turned out it was just all a bet and the fact that he allowed her to hurt his feelings once more.