On to the match though, Spider-Man scales to (maybe above?) 124 tons while Dream scales above 121 tons, so pretty even there.
Dream seems to have the hax advantage, being able to reduce Peter's AP and accuracy via Become the Hunter, as well as being able to inflict paralysis, poison, and blindness through 3 Babies Vs. 1 Villain.
Of course, Peter probably won't be too effected by blindness due to his senses and precog. His precog will definitely help to avoid Dream's attacks, but I'm unsure of how reliable it is, and if it's enough to gain an advantage.
Voting Dream.