The character topiaries are fantastic! There are also more flower displays in general all around Epcot; it's beautiful. Similar to Food and Wine they have festival booths set up with, well, food! And drink

Not as many booths as there are at F&W but still a decent amount and last year they were great. There's also a concert series like they have during F&W, this one called "Garden Rocks". Same type of bands and some of the exact same bands. Finally, they do an Easter Egg hung of sorts for kids; you can buy a map and then search for a "hidden" character Easter Egg in each country. You put the corresponding sticker on the map, turn the finished map in and get a prize

I say the egg hunt is for kids but I did it myself when we went this year without the kids lol. Flower and Garden Festival is awesome!