For those of you who have tried white tea and say it has no taste or character, I strongly suggest going to a teashop and tasting some good white tea.
My very favorite is Silver Needles, which has a wonderful taste and is very relaxing.
Another one that I like is Pai Mu Tan, which is more robust in flavor, but I like it.
White tea has about ¼ the caffeine of green tea, which has ¼ the caffeine of black tea, which has ¼ the caffeine of coffee.
Its health benefits are unparalleled.
It also has none of raw, often bitter, flavor of green teas.