I would do the behind the seeds tour at epcot if you like gardening. Since I love to garden and admire my green thumb, I naturally loved the tour. Depending on when you go, hopefully you will get the best tour guide. If you go during the summer, after June 26, you maybe able to get the best tour guide on staff. You should definitely request the tour guide Harry from Ohio. He was the best because he had the wittiest comments to all of the science information. If you are still wondering, may name is not Harry and I am not a blood relative to him in any way. So my advise take that tour with Harry. I hope that helps you on your quest to find the best tour at WDW.