your suggestion about Mobile simcard provider (Singapore)

Hey guys,
What is your suggestion about mobile provider? I will join the internation family from next week and I need to buy a sim card. In malaysia we have some options like maxis, celcom, digi ... that usually maxis is better with better deal and coverage.

i was wondering which company is the right one to choose? what do you suggest? I am light internet user, mostly use for google map, twitter, watsapp, viber and 9GAG!