While I enjoyed the keynotes overall, I have to say the most entertaining and engaging once again goes to Kerim. He blends insight and information with entertainment every year. Being the head of Product I find the information he has to disseminate of most interest to myself, as I'm always trying to stay ahead of the curve and gather insight to new product features and what they can do for my clients.
In fact, I would propose a poll to determine the true clown-prince-of-Pega (I mean this in an endearing way) between Kerim and the Don. Both do a fantastic job presenting and entertaining and should be rewarded for it.
Thanks for sharing your thoughts with the community. I don't think you are alone in thinking Kerim provides an entertaining and informative session year-after-year. I like your poll idea, I'll have to work on that.