The Thriller video is definitely the most iconic Jackson moment. I've never been too into the song though.
I'm with Pugeye, Bad is easily his best album. I've heard Dangerous and it aggressively doesn't stand out. The hits are pretty much the only thing from it that I even took notice of (and not always positively. "Black and White" is likeable but "Heal The World" is unforgivable garbage). I'm sure it sold a gazillion records though.
UNRELATED: Donald Trump is going to be directly responsible for Journey splitting up.