I say AKV savannah view Jambo side - check out the AKL/V threads you'll find this will give you fabulous views! :good vibes
Though if you're traveling at the time of a party, and you plan to attend, it may be useful to be walking distance for after the party. But given the ages of your children, I would chose based on a theme they will find fun and appealing. My kids don't find BLT all that great, BUT if attending a party we might stay there just to make 1 night easier.
We've also done split stays before. A week here, a week there - try 2 different resorts

Disney makes it (mostly) easy to do so. Bring bags to bell services, and they transfer them to your new resort. Once you check in at the new resort, they bring the bags to your room.
Sometimes I'm indecisive
We've found the same with DVC points. Most of the time our discount is better than renting.
We always get good deals, which helps. Also we LOVED AKL. So far, it's our favourite resort!
Yes, distance wise it is farther, but the buses have run consistently more regularly than other resorts. We found it took less time for us to get to all parks from there than when we stayed at the Poly.
It's not too difficult to figure out the best savannah views and book your rooms to accommodate your desires.
For us, being close to food was important - being just off Jambo house's central building made it easy to get a quick breakfast or snack for a little one.
Also we do use deluxe dinning - I highly suggest looking into it. For us, having one child eat off our plates made us need the little bit extra food - but at the 12-20 month ages our children seem to eat more solid food than most adults we know.