230v will be more efficient, run cooler, use less electricity, and startups will be easier on the motor. Anytime you CAN wire an electric motor or purchase the same said motor at a 220/230 over 110/115 you will get benefits. The same motor is doing the same work but with more ability. Its just not always feasible and sometimes not possible. Find out the amperage or wattage over any particular item and use an online calc to plug and play. Put in your variables then use your different voltages and see how the amperage changes. You might be surprised. I always use a dam as an analogy with my students.

Voltage: Electrical psi
Amperage: Flow of electricity
Watts: How much work can be done
Ohms: Resistance

Voltage is water behind the dam (psi), amperage is the flow that goes through the dam...(too much amperage and what happens to the dam or wires?)...watts is the amount of work the water going through the dam can do (turning a turbine)...and ohms is the resistance of the tunnels (size of wire, corrosion, etc)

Anyways...you didn't ask for a lesson...lol. The 230 would be best in my opinion. lol