Larry Temkin is a decent candidate. I think he has plenty of misunderstandings about EA broadly, but he also defends many views that are contrary to common EA approaches and wrote a whole book about his perspective on philanthropy. As far as philosopher critics go, he is a decent mixture of a) representing a variety of perspectives unpopular among EAs and 2) doing so in a rigorous and analytic way EAs are reasonably likely to appreciate, in particular he has been socially close to many EA philosophers, especially Derek Parfit.
Larry Temkin is a decent candidate. I think he has plenty of misunderstandings about EA broadly, but he also defends many views that are contrary to common EA approaches and wrote a whole book about his perspective on philanthropy. As far as philosopher critics go, he is a decent mixture of a) representing a variety of perspectives unpopular among EAs and 2) doing so in a rigorous and analytic way EAs are reasonably likely to appreciate, in particular he has been socially close to many EA philosophers, especially Derek Parfit.