I'd choose the SWISS itinerary for the lower total travel time and the slightly longer TATL flight (which makes for better sleeping).

If there wasn't a 4 hour difference in layovers I'd usually choose the United itinerary--I find the SWISS seat to be terribly uncomfortable for sleeping, and no amount of superior food and wine is going to make up for that. (Well, I guess with enough wine the seat becomes the least of your problems ...)