We also just returned and didn't really have any problems with crowds. Most rides were no more than 20 minute wait (and that's for biggies). Splash mountain and BTMR were usually no more than 5-10 minutes except during peak times. Morning and afternoon evening were pretty empty - my son and I rode Splash Mountain (his favorite ride) several times without getting having to get off!
Someone earlier in this thread said they thought MGM was crowded Tues morning. We were there then and thought it was not really crowded at all, with minimal waits for most rides -- the biggest problem was the two earlier Indiana Jones shows being cancelled, but we still walked in to an afternoon show 10 minutes before start and had no problem getting seats.
The one park we thought was crowded was EPCOT, which we went to on Saturday, and that was mostly Food & Wine Festival traffic in World Showcase. Many future world rides had very manageable waits, especially with use of Fast Pass.
Overall, we love the early November period!