On Impressive Philosophers

Just came across this Philosophy Bites podcast that compiled responses to the question, "Who is the most impressive philosopher you've met?" 38 minutes of philosophers' answers gives you a sense of recurring criteria, such as wit, breadth, clarity, incisiveness, generosity, and humility, and a few names are repeated such as John Rawls, Derek Parfit, Hilary Putnam, and even Derrida gets a mention.