AquaCal, Jandy, Hayward,Heat Siphon... etc. All say they have the best warranty, the best heat exchanger, etc. But which one is the best, or best two?

Does anyone know. I am looking for the most efficent, longest lasting heat pump with digital dual controls, to run a hot tup and a pool. But I want it to be quite. Sometimes the condenser fan makes more noise than the scroll compressor. Who makes the best. Please advise. I'm sure I am not the only one who wants to buy one. Any suggestions?
Aranon