During Johnny’s era there wasn’t this overly rabid vitriol with politics like we have today. Plus JC was sooo much more talented. Leno did OK too but Letterman is such a has been and Conan is way over his tall head!
Johnny could more laughs with a facial expression than the gap-toothed pervert could ever get with a line.
I agree Letterman is a nasty rank amateur at this, Carson did things that people would talk about the next day as clever and not perverted like this loser guy.