Looks like this has been the hot topic...
Asking a tea fanatic what his fav tea is...well it's just cruel...
I have favorites and won't torture myself trying to figure which I like best.
I have a pretty good selection of fresh white tea and have a cup almost every day. Some people say all their unflavored whites taste the same...knowledge of white tea and careful selection will create a pretty decent range of flavor and aroma.
For me as with all tea, I prefer unflavored, but with white the flavor and aroma can be so sublime to begin with that to flavor it, could mask it totally. Different strokes for different folks, just give it to me straight up.
I have had Ceylon Slver (Needle) Tips mentioned by somebody, and that was amazing, never had anything like it but at around $25 for 2 oz...; Chinese Silver Needle is great so long as it is fresh and, I won't order again til I know I can get 2006 harvest!!! Fuding White Treasure is considered an art form in its hand manufacture and is quite different from my other whites, Wang Fu Jing Hao (drinking right now) is nice, fruity, and sweet, and White Point Reserve is like Silver Needles kicked up a notch.
I like Pai Mu Tan, Mutan, Shou Mei, but to me, unless you are comparing side by side they are very simular in every repect.
For preparation, since they are so light and fluffy, I always weigh my whites with my electronic scale. It only takes seconds, but I get consistantly perfect results that way. I use around 2.75 grams for a 5-6 oz. cup for 3 min., temp varies by tea, and get several quality infusions. I am sure the Gongfu method works quite well also.