I'm glad I got to fly in a 747 upper deck and nose (thanks BA and Qantas). Still I really wish I could have flown in the proper nose right at the front. The idea of having forwardish facing windows just looks so nice.

I will say the A380 is really so much better than 747s (or at least 747-4s, not sure about the newer -8s). You can just tell how much quieter it is, and the size of some of the business class sections is outstanding. Emirates' business class bar is such a fun little novelty that made flying delightful. And their economy just felt better too.