The choice of banks would usually go down to the ones giving the best rates. But board rates for most banks are pretty much the same these days, after appeal (non-guaranteed) you may get better rates. Then it boils down to your preferred banks which is not necessarily the bank your salary is deposited into as inter bank transfers are only 20sen nowadays.

Sometimes you may face a lack of choice too as not all banks will finance your property because of multiple reasons:

1. Condition and location of the property, some banks wont finance props older than 10 years that has to strata/individual title

2. Your income levels too low, or commitment levels too high. In this case it would be best to go for banks with higher debt-service-ratio limits  like Hong Leong with DSR limit of 85% compared to others which typically maxes out at 70%

So my suggestion is to go for multiple banks, there are a few brokers her and there are many banks out there. The most important thing is service, as the rates are the same between brokers and bankers as the rates are considered and approved by the HQ.

Bro, if you are investing in PD Property, believe you are attracted to the so called GRR or Guarantee Rental Returns of xx%.

Please remember such GRR comes with T&C attached and many ppl have gotten burnt in the past.

So caveat emptor.