I'm a big tea lover, but I find some flavored teas can get very overpowering after a while and they tire me out.
I'm a big fan of Yogy Green tea with ginger and the Peach Detox.
Loose leaf white tea is also awesome and there is some green tea flavored with jasmine that I buy from Lebanese stores here, that is just heavenly.
You might really like making your own ginger tea with about 5 slices of fresh ginger, 2 mm thick, soaked in boiling water for about 5 minutes. Add some lemon/lime and honey and voila.
I am also a big fan of homemade masala tea, the recipe for which you can find
here
Also, I love to make tea from fresh herbs. I boil some water and pour over fresh mint, sage, thyme and let it sit for about 5-6 minutes. Yum!
I also like sun tea: putting a bag of black tea in cold water and leaving the glass bottle/jar out in the sun all day. Completely different feel and amazing with earl grey.