Evan Harris clearly understood and cared about the science, was passionate about Libel reform and the Nutt Sack issue, and he told nerdy jokes and generally won the loudest applause from the audience. Drayson was probably passionate about science once, but any passion he still has gets lost in bland politics and management speak about “finding economies”, “ring-fencing budgets”, and “realising potentials”. The tory guy, though? Just seems to be passing through on his way up.