As mentioned earlier, many women from various locations and backgrounds can make great wives.
However, in my view, you'll find a greater number of women with the values that many Western men value in Asia than perhaps in others. Having said that NOT ALL FILIPINAS make great wives per se - whether they do depends on so many things such as their individual ethics, what their partner needs/expects from them and how their partner treats them, etc.
My wife is a great wife for me because of what I value and admire in her so much and because of what I'm willing to do to ensure she is happy!