Hi Kimberly,
Thanks for writing to me. As the proud mom of two boys, I'm happy to report that there are many wonderful special experiences at Disney World that have nothing to do with princesses, tiaras or tea parties! (Although I will say that both of my boys are infatuated with the princesses and love walking around with lipstick marks on their cheeks after meeting them!) One of my boys' favorites is the Pirate League at the Magic Kingdom, where fans of Captain Jack (over three) can be transformed into one of several amazing pirates. All packages come with a sword and sheath, eye patch, earing, tattoo, and a personalized pirate oath, along with a souvenir photo. I'm guessing your soon-to-be six-year-old would love a visit, and that his little brother would enjoy watching him turn into a pirate. My kids have also been on a pirate cruise from the Grand Floridian (there are several that leave from a number of different properties) where they were outfitted with a red and white pirate hat and went on a treasure hunt before having a picnic lunch. We have also done many activities together as a family that boys tend to be huge fans of, including horseback riding at Fort Wilderness, renting a surrey bicycle on the BoardWalk and taking a fishing excursion, also at the Fort.
As for breakfast recommendations, my family loves Chef Mickeys, largely because my kids really enjoy getting up and picking their own food. Ohana serves a wonderful family-style breakfast (which includes, what many argue, are the best scrambled eggs at Disney). If it would be easier for your family to stay seated while your food is brought to your table, I'd recommend this location. Both locations are on the monorail, so heading to either Epcot or Magic Kingdom after breakfast will be easy and convenient.
I hope your son has a wonderful Disney birthday, and that both of your boys have a magical trip!
Tanya