Monica and Chandler
Ross and Rachel got married once, but they didn't have the kind of fantastic, one-of-a-kind wedding the show's fans always hoped for (though Jennifer Anniston and Brad Pitt's real life "I dos" were pretty spectacular). However, Monica and Chandler's union made up for it.
Filled with the kind of hilarious hijinks and sweet moments that only the "Friends" cast could deliver, this two-part episode featured a positive pregnancy test, cold feet, a missing groom, a tardy officiator (yes, it's Joey) and unforgettable vows. The guest list was pretty impressive, too, with Gary Oldman, Kathleen Turner and Morgan Fairchild all playing supporting roles.