For investment on property:
1. Low interest rate - Definitely Singapore and who knows soon with the global economy pumping out more money, things may yet change for Malaysia.
2. High rental Yield - Singapore and parts of Malaysia especially for those who have bought early. Emphasis on early as those who bought late especially in Singapore are starting to find that they can barely cover the loan (condos) with their rental.
3. Good tenants - Very iffy for both countries but i was EXTREMELY lucky so far. One even left me water purifier, beds and wardrobe when i took over yesterday, all of them cleaned up prior to passing back to me. All paid up on time, locals, Singaporeans and foreigners.
4. Easy to dispose to both local n foreign - Yes for both but both have issues as well. Singapore has higher costs to purchase and not all properties are open to foreigners while Malaysia has longer processes and state consent especially for foreigners
5. Travel time to work without traffic jam within 15-30mins - I don't think this is something doable even in Singapore. Hard to choose the workplace as well.
In Singapore, With MRT, i can be there in about 40 minutes door to door. With driving, it takes even longer, typically 1 hour to 1.5 hours. One time being stuck in a traffic jam, it took me more than 2 hours to get to work, within Singapore.
6. Avoid over supply so no rental income - Both sides of the causeway have this issue particularly with a certain type of property that so many are advocating right now.
7. Political Environment stable - One is getting wobbly and losing orbit while the other will be tested very shortly.
Get one for 2nd home n pay full cash is fine. Buy few more n pay full n keep if hv more cash.