1. Meredith And Derek (Seasons 5, 7, 17)
Of course the top spot goes to Meredith and Derek. They’ve got weddings on quality and quantity, but none was more romantic than the Season 5 Post-It wedding. In “Now or Never,” after giving their big church wedding to Izzie and Alex, MerDer still wanted to tie the knot at city hall. But there was, er, a lot going on in the hospital that day, and they couldn’t find the time to sneak away. So on the Post-Its that Cristina had given Meredith as her something old, new, borrowed and blue, Derek and Meredith wrote down their promises to each other. They each signed the Post-It, completing one of the best TV weddings ever.