In theory it makes no difference, but general lab practice is to use the lower one first as it takes less time for the probe to adjust up from neutral then down from a strong base,
In Florida, FDEP requires calibration start with 7
I know the 10 buffer is least reliable as it is carbonate based and can be effected by CO2. I work with HACH, Orion, and Oakton which all use 4,7,10 as the sequence when calibrating. The pH controller units I use typically just use 4 and 10. Calculte the slope to determine if the cal is good.