Hi, Ricky! For my family, the biggest advantage of having the VIP tour guide would be found at the Magic Kingdom and EPCOT. These are our two favorite parks, and we spend the most amount of time on any given trip at these parks. We also find that most of our favorite attractions are either at the Magic Kingdom or EPCOT, and we spend the most amount of time waiting on line at these parks. Having a VIP guide to help us negotiate these parks better would be a tremendous benefit to us.
I think your best plan is to check out
www.disneyworld.com and see which parks you envision spending most of your time visiting. Go down the list of attractions at each park and determine where you want to be to see the most things, and use your guide accordingly. The best use of the guide is going to be at the parks where your family has the longest list of things they want to see and do.
What a wonderful way to help your family make the most of the time you have! I have only been fortunate enough to use the VIP guides on one trip, and loved having our guide with us!
Have a fabulous vacation!