May I know between Singtel and CapitaLand, which is a better counter at this moment?

Both are vastly different and cannot be compared side by side. No one values your own money more than yourself.

My advice is for you to do ample research on the two companies from their Annual Report then you can deduce which is better for you. There are a lot of resouces online on how to read a balance sheet for starters so you can gauge the financial health and perfomance of them.