I also really love my child's local school. But I would disagree (in a nice way

) about the schools being kind of the same and that individual effort / scholarship can beat any elite school.
Yes, it is true that Rulang had the top score on the PSLE this year, but that student has mentioned in many interviews, that she was doing regularly outside of school 6-8 hours of preparation a day!!! Plus Rulang if you look at Kiasu's Parents has been over the past few years more consistently sending kids to the top 15 on the PSLE and getting kids over the 275 mark.
The range this year on primary schools and the top scorer's mark for the PSLE starts with a student at Rulang with 283, then a student at ACS at 282 and then a student over at Raffles at 281. Raffles got three students scoring in the top ten for the PSLE and St Hilda's scored three students in the top 15. Both Raffles and St Hilda's consistently get students scoring in the top 15, they have high class averages outside of even their GEP classes. Along with Raffles and St Hilda's then there are other GEP schools plus some of the top local schools, which regularly and consistently deliver amazing results on the PSLE.
To compare the highest PSLE score at Qifa - where the PSLE top scorer came from a few yeas ago was 267. Some where like Paya Lebar had a top scorer at 266.
My point, I think that you do need to do some research. If you are applying for P1 as a foreigner with an employment pass, you will have little choice about the school. It is definitely worth getting your PR before you apply for P1. A great place to read more about local schools is Kiasu Parents. Certainly, when I was trying to enrol my child, I read everything on that site!
Good luck!