Something I Need To Know

Christ, you tell me, you just bought AE. The title reads like you needed to ask some kind of cosmic question.

Personally I think AE is longer, but then again I haven't played either in a long time.

I know how long AE is, I just don't know how long MO is.

I think MO is longer, if only due to major frustration in several levels.

I think it depends on who's playing. Somebody whose beaten MO a hundred times will likely play through it faster than AE.

MO has a select few levels which must be done so many times before getting them right.
AE has almost half of the screens with puzzling... Errr... Puzzles.

AE is longer but MO can be harder at points.

And the XBox360 sound issue is that there's never any music.

Loading bay. I gave up on that level for TWO YEARS before finally deciding to finish the game.