YC/BC and AKL are my favorite resorts. We always stay at YC/BC when we are going to the Epcot festivals, for easy walking, and AKL any other time.
SAB is my favorite pool, but the Jambo pool is a close second for me. There is a lot of seating, both loungers and tables, so it is usually pretty easy to find a place to sit, and easy to find a chair that is a little farther from the pool to relax a bit. I also like how secluded the hot tubs are are Jambo, so they are usually a little less crowded than the ones at SAB. It is also nice that you get to use both the Jambo and Kidani pools. There are also really nice showers by the Jambo pool that come in handy if you want to swim on your last day before leaving, or just need a shower when you don't have a room, and they are not nearly as utilized as the newer ones at YC/BC.
AKL/V has my favorite on property restaurants. We have always enjoyed our meals at Jiko, Sanaa, and Boma. The Mara also has many more options as a QS location than anything at YC/BC/BW. Victoria Falls lounge and the Jiko bar are both great places to grab a drink and some food if you don't want to do an ADR.
Watching the animals, and talking to the CMs by the savanna is fantastic, and a favorite pastime of mine, but I also enjoy the fire pits and the various tucked away areas around the resort to relax.
The gift shop at Jambo is quite large, and my favorite on property, I am currently drinking coffee out of my AKL mug!
If you haven't been, AKL is at least worth a visit, the lobby is so beautiful, and the savannas are such a unique and amazing experience. I always book a savanna view room, and the premium is worth it to me, but just note that you may not see a lot of animals. We have always had good savanna views until this past January when we basically just saw a few Zebras, the resort manager said that they were keeping the giraffes inside a lot because it was so cold, so that was disappointing, but it was still a great stay.
We primarily use buses, with an uber here and there, and have never had any more of an issue at AKL than anywhere else, personally, I think the buses are about the same everywhere, and it has more to do with timing as to how your experience will be. The bus ride to Epcot in particular isn't bad at all, MK is obviously a little longer as MK is the most out of the way park, and AKL is the farthest resort from MK.