Emirates Airlines Skywards - Meal service and Equipment on DXB-KUL sector

What to expect in Y for DXB-KUL day flight and KUL-DXB past mid-night flight? The published flying time is 6 hours 55 mins. Will there be two meal rounds in the inbound? What is there on outbound?

Also, Does 777-300ER better than 777-300 in cabin comfort (Y) and ICE?