One of my favorite things Hitch did that always brings an inward chuckle is that he challenged the sainthood of Mother Theresa. He wrote a book about her, challenging the public persona she embodied, making his case for her being scornful of the downtrodden while consorting with royalty. What really got my attention is that when the Catholic Church was hearing outside testimony for why she should not be canonized as a saint, Hitch accepted the Church's invitation to make his case against her. An absolutely indefatigable debater since his Oxford undergrad days, Hitch leaped into the fray, appearing at the Church's offices where he presented his case in full. He didn't prevail on this issue but I had to give him credit for following a cause right down to the grittiest final detail.
Hitch was also the one who convinced me to read all of P. G. Wodehouse's Jeeves & Wooster stories. I became as big a fan as he was of those two and their antics. I even tried out the audio versions and loved those as well at his behest.
He also radically shifted political sides after 9/11, believing we were in terrible danger from Islamic fundamentalists. Thus, he was in favor of the war we waged after that even though he had always been on the left before. As part of this new belief of his, he let himself be water boarded as a guinea pig so the public could see exactly what it was like as a torture device. At the time of his death, he was still opposed to the Islamic fundamentalists but now was back into a moderate political position and probably heading left again.
I certainly did not agree with his views on everything but I sure liked reading and listening to his arguments about everything. No one has stepped in to take his place and I'm not really expecting to see anyone able to do so in what remains of my lifetime.