Wiring disposal/dishwasher/outlets in island
The first rule is that you can't have any receptacles on a circuit if the fixed load is more than 50% of circuit capacity.  So on a 20A circuit, that means 10A.   Your 10.6A dishwasher cannot be on the same circuit with any receptacles. 

The second rule is that if an appliance is able/likely to run continuously for >3 hours, you must plan for 125% of its capacity on the circuit.  I'm not sure if a dishwasher qualifies, but if so, it counts as 125% of 10.6A or 13.25 amps.  The disposal is definitely not a continuous load, so it counts at 100%, or 6.3 amps.  Together, they count as 19.55 amps, which nicely fits a 20A circuit.  

This design seems to "write itself": the dishwasher circuit can't have receptacles, leaving it with a bunch of spare capacity nothing can use except the disposal. 

That would leave the other circuit wide-open for receptacles only.