We're a family of six, and while our kids are now 14, 15, 18, and 20, we've been
DVC members since the two oldest were itty-bitty. Over the years, we've tried many room combinations to accommodate our family—two studios, 2-bedroom villas, 3-bedroom grand villas, and even Fort Wilderness Cabins (booked as a cash reservation). The majority of our trips have been in 2-bedroom villas, which have worked really well for us.
We personally love Animal Kingdom Villas and own there, but honestly, there are many great resorts—it really just depends on what you're looking for. Now that our kids are older, we've started booking two studios instead, as it's often more economical. Our sons stay with us, and our daughters have their own space, which has worked out nicely.
Ultimately, the best choice depends on where you want to stay and how many points you're willing to spend.
Another option to consider is Wyndham Bonnet Creek. We own there as well and like to rotate between WBC and DVC every other trip when traveling with the whole family. The great thing about Bonnet Creek is that you get more space in each room category. We love their 2- and 3-bedroom units and have used them for extended family and friends on larger trips. I'm not sure about the cost these days, but we bought resale there 15 years ago and have used those points at Wyndham's all over the country.