Good hasbara, in my opinion, has two components: It is effective in changing people's perceptions of Israel and it reaches a large audience. And, of course, it must reflect the truth.
So think about the best specific videos, events, speeches, articles, graphics, blog-posts, campaigns, demonstrations or any other items that would qualify, and write your nominations in the comments.
With luck, there may even be an awards ceremony!
(I never got around to giving the 2011 awards, but you can see the nominations here.)