Personally, my least favorite character is Amos Diggory. I hate that man with every fiber of my being. Almost as much if not as much as Umbridge, and here's why:
"'Ced's talked about you, of course,' said Amos Diggory. "Told us all about playing against you last year.... I said to him, I said -- Ced, that'll be something to tell your grandchildren, that will.... You beat Harry Potter!'
"Harry couldn't think of a reply to this, so he remained silent. Fred and George were both scowling again. Cedric looked slightly embarrassed.
"'Harry fell off his broom, Dad,' he muttered. 'I told you... it was an accident....'
"'Yes, but you didn't fall, did you?' roared Amos genially, slapping his son on the back. 'Always modest, our Ced, always the gentleman... but the best man won, I'm sure Harry'd say the same, wouldn't you, eh? One falls off his broom, the other stays on, you don't need to be a genius to tell which one's the better flier!'"
I mean sure, I understand the first part, but, "You don't need to be a genius to tell whose the better flier"? Don't you thing your going a little far now, Diggory? Your son may be a gentleman, but you certainly are not.
Anyway, who is your least favorite character (besides Umbridge because everyone hates her) and why?