This is a tough call for me...but I had to go with the Stooges...but only because I'm more familiar with their work.

But what I have seen of the Marx brothers always has me in stitches. Duck Soup is tied with Monty Python and the Holy Grail as my favorite comedy.

But I gotta give the nod to the Stooges...only because I've seen more of their material.

Both were absolutely fantastic acts, though...and you can't go wrong with either.