Hi Karen!  Just a few more sleeps and you'll be at Walt Disney World!  I definitely agree with your way of thinking.  I'm all about visiting the park with the lowest crowd level, no matter what time of year.   I actually avoid Extra Magic Hours for two reasons - first, I don't like getting up that early, and second, the parks with Extra Magic Hours in the morning tend to be the busiest, at least for the first portion of the day.  Check the Disney Parks Online Calendar for a schedule of which parks have morning and evening Extra Magic Hours during your visit, and then plan your vacation accordingly.

I wish you safe travels and a very magical visit to Walt Disney World!

Kristen