Here's my own prediction:
1. George Goh Ching Wah -
40% (i.e. the
"Opposition" voters)
2. Tharman Shanmugaratnam -
30% (i.e.
PAP voters who
don't mind an Indian Sinkie President, but I think he will receive
LESS than Tony Tan's 35% in 2011)
3. Ng Kok Song -
20% (i.e.
PAP voters who
want a Chinese Sinkie President, but I think he will receive
LESS than Tan Jee Say's 25% in 2011)
4. Tan Kin Lian -
10% (i.e.
PAP voters who
want a Chinese Sinkie President, but I think he will receive
MORE than his own 5% in 2011, mainly because
Tan Jee Say seems to be supporting him!
)
Finally, here are the two relevant wikipedia articles:
wikipedia.org/wiki/2023_Singaporean_presidential_election
wikipedia.org/wiki/2011_Singaporean_presidential_election
for comparison.