Assuming you know how to brew tea properly.
We have a local coffee shop here that sells pretty good tea. It's not a big chain, at all, and the tea is excellent. I prefer white tea over green tea myself.
According to Dr. Oz, Oolong Tea helps you burn more calories.
Green tea has one of the most powerful antioxidants which is epigallocatechin gallate.Antioxidants are actually protein compounds that help slow down the oxidation process. Green tea can help with scalp conditions such as dandruff and psoriasis by soothing skin and reducing inflammation.Green tea can even help to prevent tooth decay. Green tea can help to burn calories.It helps to lose weight effectively.
Green tea is great for the everyday drink for caffeine and some egcg. However, the amount you'd have to drink to drink to get the potent anti-oxidants, and extra health benefits, is outrageous. IMHO....drink some green tea to for the extra benefits but don't relay on it.
Sara - IMO, almost any green tea you find in the supermarket will do.
green tea is good after dinners helps in digestion.
Health Benefits of Matcha Green Tea Powder - Matcha Source
Matcha is the roids of green tea. Expensive for the highest grade, I just got some off amazon for 19 for 2 oz. It has 137X the EGcg compared to regular green tea. It's quite tasty.
I avoid anything other than white or green tea and matcha is the king of the counter now. Never take lemon or citrus with any teas as teas naturally absorb aluminum and fluoride from the soil and lemon drastically increases your absorption of it. That is also why only green or white teas as they have far less fluoride being picked much earlier.
Oolong tea is the best in my opinion.