[Lucius Cornelius Sulla]

I believe that the fission theory still seems dominant. Myself, I have problems with the capture theory, maybe because I was lousy at catching baseballs or footballs.

[SunkenCiv]

It's true, the impact fission model is dominant. :') There are three basic possibilities:

1. Earth and Moon formed basically simultaneously with the Moon forming of less material and in orbit around the Earth. No living adherents among scientists afaik.
2. Earth and Moon formed separately, with the Moon being captured later by some means. I'm pretty smug because I'm the only one here.
3. The Moon formed from the proto-Earth by fission, due to an overspin condition (the late Thomas Van Flandern was the most prominent recent advocate of this, it's too bad he was associated with that Face on Mars nonsense); or formed from the proto-Earth when another large body walloped into it.