Which notation do you find is easiest to work with and whySo

Which notation do you find is easiest to work with and why?

Solution

you did not mention the problem clearly in which area you want.

so here i considered the AC analysis for the networks,electrical machines,power systems.

AC cicuts simplification can be done simply by using polar form i.e. representation of magnitude and phase angle of any response(or) element in the circuit with respect to reference function.The equations in the polar form notations can be simply solved by just basic arithmatic operations.

Another one i considered is per unit representation mainly used in power systems.

when all parameters are can be converted into per unit system and can be simplify with out considering whether it is three phase or single phase,whether the element is on the primary side or secondary side of a particular transfomer.