I have viewed only two of the movies that were up for best picture, and I can say that Daniel Day-Lewis in There Will Be Blood was as perfect as I have ever witnessed in a role.
"Drainage! Drainage, Eli, you boy. Drained dry. I'm so sorry. Here, if you have a milkshake, and I have a milkshake, and I have a straw. There it is, that's a straw, you see? You watching?. And my straw reaches acroooooooss the room, and starts to drink your milkshake... I... drink... your... milkshake! I drink it up!"