4. Balcony shots with Granny

APRIL 21

The Queen’s birthday and they adopt very different approaches to this milestone.

SUSSEX ROYAL: ‘happy Birthday Your Majesty. Ma’am, Granny. Wishing you the most wonderful day!’ declare the couple, complete with — gasp! — a balloon emoji. INSTA-STATS: Seven photos, 836,207 likes.

KENSINGTON ROYAL: A family photo — William, Kate, George and Charlotte with the Queen and other family members on the Palace balcony. INSTA-STATS: One picture, but 852,720 likes and a new high of 7.7 million followers. WINNER: KENSINGTON ROYAL