Hollywood is only a part of cinema.
well that is why I specifically said that I am only listing my favorite Hollywood actors - because I know that I haven't seen enough of foreign actors to accurately judge them. I've definitely seen quite a few foreign films – some Italian and quite a few French – and I certainly love some European actors, like Alain Delon, Jean Gabin, and Gian Maria Volonte; but I know that I have seen only a tiny fraction of the great actors from those countries. Also, since I don't speak those languages but have to follow the subtitles, I'm not judging the European actors in the same way I am judging the Hollywood actors. So, all in all, I just felt more comfortable listing my favorite Hollywood actors.
Also, as I've mentioned previously, I only watch Westerns, Dramas, Thrillers, Suspense, Crime Films, etc. In other words, no Comedy, Horror, Sci-Fi, Fantasy, Musical, etc. So, my list of favorite actors obviously only includes those from the former categories; I haven't seen guys like Fred Astaire and Gene Kelly.