I disagree with his being one of the better interview subjects. He puts his foot in his mouth regularly and comes across as unprepared. His on-camera confrontation with Peter Caruthers (who's a terrible interviewer, imo) made me realize that Johnny does not do interviews well, especially with someone who isn't a supporter of his. In situations like that, canned responses are better than outbursts and failed diversions.
Memorable? Meh. Not really. I rarely read interviews with him anyway. To his fans, yes.
IMO, he only interviews well if the interviewer is sympathetic or a fan and plays it safe with the questions.