I don't know how much help this will be, but you could try looking at the Indian school. They have an IB curriculum so there will be less hassle settling back into another country's school if you are planning on leaving Singapore again in the future. As an added bonus, they charge $6-7,000 a year in fees (less than half the price of some schools).
As has been mentioned many times, you can't tell much by the website, so make a shortlist and visit the schools to get a better "feel" for the place, judging on your child, the staff and the other children there.
I have found it stressful looking for kindergartens and pre-schools! I am sure this is very stressful, but all the
International Schools are very good. Try not to worry.