I saw the movie yesterday, it was amazing. Pi is my favorite of the 3 movies you named. My mother however, liked Fountain the most of all 3 movies.

Aronofsky is my brother and my favorite director so we had plans to see The Fountain together, my mom insisted on going even though she didn't like Pi or Requiem.
Aronofsky also had a hand in Below, didn't know if you knew that. The movie was nowhere near as good as the other 3. Decent, but nowhere close to the same level. He didn't direct it though.
I thought Hugh Jackman was awesome in this movie. He did a spectacular job.
I wasn't sure how this movie was going to be cause I had such high expectations. I was not let down. If you cannot decide if you should watch it or not, definitely watch this movie.
I have the Pi movie poster where he is laying on the ground with the huge red Pi symbol.

/bragging
I don't have a movie room for it yet.

/pity