Then put your little hand in mine
There ain't no hill or mountain we can't climb......
While Bill Murray's character was not the central figure, I submit Caddyshack was the funniest movie listed above. His soliloquy about looping for the Dali Lama is an all time scene. And he's got that going for him, which is nice.
I was going to vote for either Groundhog Day or Scrooged, so...Other.
I think of Caddyshack as an ensemble movie too. Ghostbusters & Stripes are pretty much classics.