Tangierine Cafe in the Morocco pavilion of World Showcase ranks among my favorite counter service locations in all of Disney. The schwarma platters are delicious. I actually prefer Tangerine to Marrakesh, the adjacent table-service restaurant.
In Future World, Sunshine Seasons is my favorite. It's located in The Land pavilion, across from Living with the Land and next to Soarin'. It's a food court divided into multiple stations all offering different fast-casual dishes. The salads are sandwiches are fresh and tasty, while the rotisserie and grill pod is great for a heartier meal. The bakery serves some of the best counter-service desserts around.