love kusmi tea, esp prince vladimir which is an orange-infused earl grey. this one cafe near my hometown sold this brand, and i always loved going there to try a new blend.
i have also been meaning to buy some tea from leaves and flowers, esp their chai!
for green teas, rishi jade cloud is so very potent and provides a mellow caffeine release.
i also recently visited the coffee and tea exchange in chicago, they have so many unique offerings. tried their darjeeling and it was lovely!