I prefer his American persona in tv/movies
I know it sounds weird, but I prefer his characters as Americans. I even prefer his British roles over him in real life, lol. I read interviews with him and he seems insufferable. Maybe it's the elitist education, but he comes across as very pretentious. I could definitely be wrong, he's probably a swell person, but his kind tends to make my skin crawl.
I still like his work and think he's incredibly attractive though.