WN is the airline version of Greyhound. This is fine when the flight is a) on time and b) runs smoothly, because it's cheap transport from point A to point B. When I fly them (as infrequently as possible), I often get c) neither. (The two times I was on a flight when a passenger was too intoxicated to fly, and had to be removed from a plane? Both on WN.)
The humor during the announcements is fine, and I do admit they are AMAZING at getting planes in and out of gates and passengers off and on the plane.
I wouldn't trade 'em for AS, though.