How wonderful to see I'm not the only tea drinker on this forum!
I love tea, I've never been a coffee drinker really (the only thing I occasionally have is a cappuccino or a coffee mocha at cafes), my minum is two cups a day. One of the most luxurious thing is to serve a full afternoon tea, don't do it very often but it happens, and I just love the experience. Have a pretty little collection of tea pots as well, so I always serve the tea in a beautiful pot that gives one something pretty to look at as well.
Some favourites of mine, which I would all recommend...
Earl Grey - The classic, works every time, drink it often
Lady Grey (Twinings) - Similar to Earl Grey but with an extra dash of bergamot, one of my regulars
Green Tea (Twinings) - Very refreshing
Jasmine Green Tea - Refreshing and special
Russian Earl Grey (Lipton) - A very exciting tea, its strong in its taste, big citrus accent
Darjeeling - Really rich and sort of "blooming" and "spicy", it's a lighter coloured dark tea
Rooibos (red tea) - Takes a while to get used to it perhaps, but it's good if one doesn't want anything with caffeine (like late at night), plus it has good anti-oxidants in it