I’m not clear on your question, are you asking which building - Kidani or Jambo - would be better? Or which area w/in one of those buildings?
At 7 months you are more likely to get the larger DVC only Kidani. If you want a dedicated 2 br. (2 queen size beds in the non master bedroom, only 1 exterior door, 3 bathrooms) you’ll need to book Kidani since all of the Jambo 2 br.s are lock offs (a studio + a 1 br. w/ a connecting door, 2 bathrooms in Jambo, 3 in Kidani, 2 exterior doors.) All Jambo DVC villas are on the 5th floor (6th for club) so if you want a lower floor w/ more of an ‘eye level’ view of the animals book Kidani. The Kidani pool has an awesome kids splash area, Jambo’s pool is larger - you can use either, the walk between the resorts is 10 - 15 minutes or there’s a shuttle that runs between them.
Jambo has the quick service Mara, if you book a standard view at Jambo you have a decent chance of overlooking Sunset savanna, whereas at Kidani a standard view booking has a slim chance of overlooking the very small Pembe savanna.