One of the most important things for a man who likes to meet beautiful women is population density. You would not be able to find many girls at all in a low population density country or city, much less pretty women. Singapore is a city-state and is also a country. Along with its small geographical size, this means that as long as you land in Singapore, you can meet escorts from any part of the city! They can easily travel to you.
The second key thing is that the locals put a high emphasis on education. This means that virtually every escort you meet in Singapore are intelligent and eloquent. They are also English speaking. This means no communication barriers between you and the model regardless of the country you come from! This is the case as long as you engage a true Singaporean woman.