Issue No. 1: what do you mean by early Jan. This close to expected date, you may have problems getting what you want particularly if "early Jan" includes Jan 1- 3 which will still have the large holiday crowd and all rooms could be full. You may even have problems for times in Jan thereafter particularly for value or standard view.
Value room is really too small for 5 even if they allow it. Standard at either Jambo of Kidani would be fine except Kidani 1BR is about 90 sq ft larger than Jambo's and has an extra bathroom. If having very comfortable space is a major factor, Kidani wins.
If you have car, Kidani is ideal because you park on ground floor under building and with elevators along the wings you can always park fairly close to room no matter where you are. Jambo standard guarantees pool view, Kidani you can get pool or road. Note, probability is that you won't be using the pool much while there but some possibility of warm enough days (been there in Jan when it was 75 and above every day; also was there in 2010 when it never got to 50 and was 28 in the morning). Both pools are nice, Jambo's larger, Kidani has longer slide and kids water play area.
Kidani has only table service restaurant, Jambo has table service, buffet, and counter service restaurants. Thus, if daily use of counter service restaurant is a must, then Jambo is the better choice (walk from Kidani to Jambo is 1/2 mile).
