Just going to add a little to the pros
Adventureland- Both mountains, POTC, & HM although I like that one at night

& Jungle Cruise
Tomorrowland Space Moutain FP, then Space Ranger Spin
Fantasyland has got to be the hardest since all the small kids want to do this 1st, I have found during any parade or during the fireworks is the best time, but P.M. EMH rules for this since most turn in early

, Peter Pan is a tough sell has a long line no matter what time you go by

, but when you really think about it and compare Fantasyland to the rest of the rides in the park, it's the kiddie section, we will do all of them to bring back fond memories but I will not wait on a big line for them

, It would have really been great if they added Mr Toad's wild Ride or 20,000 leagues back into the line up for the new Fantasyland, I think it would have done well if updated
In a recap, where you start depends on your family
If you have small children that are not tall enough to ride a lot of rides, Fantasyland is the place to start, if your kids are tall enough to get on most of the rides it's between Tommorrowland or Adventureland side, Myself I go for the Adventureland side basically because of 2 reasons

, 1- Most people tend to go right as force of habit (right handed) 2 - there are more rides on the Adventureland side that could be a long wait ( Splash Mountain, Thunder Moutain, POTC, HM, Jungle Cruise) compared to (Space Mountain, Space Ranger Spin & Speedway) all the rest of the rides in those sections are basically line moving rides that a mass amount of guests get on at one time
No matter what Disney Park you go to it basically is a right or left first issue