Thankgiving has so many different flavors and dishes, I don't think many people will say one wine pairs up better.
Myself, I go with a Shiraz.
If your keen on white, might I suggest a Brute or semi dry champagne?
I just had an Australian wine called New Age, it is similar to a Riesling but slightly less sweet-a bit more crisp. I really liked it. I am planning on getting some for tomorrow.
I like Viognier. It is a little more floral then chardonnay and holds up well to the full flavors of teh turkey and sides. You can find them from California and France.