The countries that have the best records in the Commonwealth Games are usually the larger countries and the ones who have a had a long and storied history in both the Commonwealth Games and the regular Olympics. Some of the countries that have had the best records and best success in the Commonwealth Games are ones such as Australia, Canada, England, South Africa, India, and New Zealand.
These countries are always known around the world and amongst the Commonwealth of Nations as being the best in different sports such as rugby and track and field. These countries also have strong atheltic federations who are behind them who in turn is another reason why these countries have always had the best records in the Commonwealth Games and why they are so successful on the international and Olympic level. A lot of these athletes have also been able to garner a wide international following amongst Olympic and sports fans as well.