It would be nice if the langues where localized. For example for English there are at least 16 locals supported by Windows.
- Australia
- Belize
- Canada
- Caribbean
- India
- Ireland
- Jamaica
- Malaysia
- New Zealand
- Philippines
- Singapore
- South Africa
- Trinidad and Tobago
- United Kingdom
- United States
- Zimbabwe
It seems that the English local is New Zealand which would make sense for the first English local you would use. Usually most applications only do a couple of the popular locals for each language when supported at all.