Well, the most cheapest loan packages now are those that prices loan interest with Sibor 1-mth + premium and the most popular packages have an added feature that give you the flexibility to switch across SIBOR tenures; eg 1-mth, 3-mth 6-mth or 12-mth.
In a peaceful market short-term Sibor rates (eg 1-mth, 3-mth) are usually lower than long term, just like bank fixed deposits; the longer the maturity, the higher the interest.
When money supply is tight during market crash, it will be vice-versa (short-term is more expensive). This is where such loan packages can be helpful because the interest rate yield curve goes crazy during market meltdown; damage will be limited because you can at least re-peg to the cheapest SIBOR tenures.
First, you need to check the loan amount you are looking for, because getting a bank loan will mean a legal fees subsidy. I went with DBS Bank as it is one of Singapore's largest housing loan providers and is rated better than most. They offer best rates, along with customized packages that take care of individual needs. I am happy with the service provided and I feel the bank is very reliable; you can visit their website for further information.