The best option between an HRV and an ERV depends on the climate conditions, building regulations, and specific requirements of the project. If your house is too humid in winter (above 60% RH) then an HRV is the better choice, as it would surely get rid of excess humidity while an ERV would tend to keep it at a high level. If the opposite is true and your house is too dry in winter, then an ERV would be a better choice as it helps retain humidity, eliminating the need (and cost) for you to generate it through other means.
So, in the end, there is no right choice between ERV & HRV systems but keep an eye on quality. If you are building or renovating a properly airtight house, especially if going for Passive House, nZEB, or LEED certification, HRV or ERV will help you achieve a high-performance building.
Consult LUNOS decentralised ventilation systems: https://www.partel.ie/products/lunos-ventilation-with-heat-recovery