Was it long time ago? Do you have nominee shareholders?
I personally prefer DBS, especially that from personal accounts it is free to send transfers anywhere, e.g. EUR to Europe and beneficiary gets money in full. They are the only bank having such solution in place. All other banks including OCBC have hefty charges in place for international transfers, the only thing that change is a discount e.g. 50% on some fees if you are OCBC Premier etc.
It was last year and I reported my findings in another thread. No nominees, and only one shareholder.