Green tea has been used in China for centuries. Generally, lower-quality green teas are steeped hotter and longer while higher-quality teas are steeped cooler and shorter, but this can be dine multiple times.
Cardamom is one of the most common spices seen in an Indian household. Cardamom is related to ginger and can be used in much the same way.
White Tea is made from a leaf that has the least oxidation which means it hold the most natural elements of the plant. White tea leaves are processed only minimally after they are harvested, they hold onto most of their naturally occurring antioxidants.