I agree that it truly depends who you ask. It depends who you ask and what their history is on their trips and when they've taken them. Me, for instance....I've only gone in June, July or August--I'm accustomed to waiting at least 45 minutes for the good rides and I'm also used to dealing with rain daily. This year was my first trip in a non summer month. I loved it. The weather was great...only rained once really and the humidity was often gone by 1pm or so. The crowds at the parks were minimal meaning the waits were around 30 minutes at most for the attractions, but that was stretching it. I got on Space Mountain in 5 minutes and it was the same for many attractions. To put it into perspective, we did the early entry and this was after normal opening time, typically between 9 and 11am. Walking down Main Street I heard someone say, wow its crowded....this really opened my eyes that you'll find many different answers. This was the lowest I'd seen the parks, and that person thought they were mobbed. They probably had only been in January or any other really low time. It truly does depend who you ask.
Hope this helps!