I am actually surprised by the postings so far, but I agree. I also find the Fellowship of the ring to be the best 'movie'. The Two Towers and the Return of the King are very good movies and riveting to watch, but not as well put together at the Fellowship. I thought that is was more deserving of the best film Oscar than ROTK. A Beautiful Mind beat out Fellowship. Russell Crowe did a great job in A Beautiful Mind, but Fellowship should have won Best Picture.....I digress 
Yes, I am a Lord of the Rings nut. I own both versions of the first two movies and the standard version of ROTK because I didnt want to wait for the extended versions. 
Most of you probably know by now that there is bonus material on the extended versions of both of the first two movies. Go to the chapter selection on disc 1, then highlight the last chapter. From there, arrow down and you will highlight a ring. Press enter while on the ring and you will access the hidden feature. Each movie has a different MTV Movie Awards skit about the Lord of the Rings. Be warned, even though it was on TV, it was on MTV and the skits are a bit more riske'.