HSBC is offering an upsized $250 cash or AirPods (3rd gen) when you sign up for your first HSBC card through the following Singsaver links. Get further $30 by using MyInfo when you sign up! Offer is until 16th March 2022 only, and is for new HSBC cardholders. Existing cardholders can still get a generous $60.
Of the three, I would advise getting HSBC Revolution as it is pretty versatile and lets you choose between a good miles earn rate and an okay cashback rate, and unlike most high earn cards is actually quite easy to use.
Strictly cashback users may still prefer the HSBC Advance which gives up to 3.5% cashback....